diff --git a/client/src/components/dueDates/DueDateSingle.vue b/client/src/components/dueDates/DueDateSingle.vue
index 45148417..84fb2306 100644
--- a/client/src/components/dueDates/DueDateSingle.vue
+++ b/client/src/components/dueDates/DueDateSingle.vue
@@ -17,7 +17,7 @@ const assignmentType = t(props.dueDate.assignment_type_translation_key);
 
 const courseSessionsStore = useCourseSessionsStore();
 const courseSession = courseSessionsStore.allCourseSessions.find(
-  (cs: CourseSession) => cs.id === props.dueDate.course_session
+  (cs: CourseSession) => cs.id === props.dueDate.course_session_id
 );
 
 if (!courseSession) {
@@ -28,10 +28,10 @@ const isExpert = courseSessionsStore.hasCockpit(courseSession);
 const url = isExpert ? props.dueDate.url_expert : props.dueDate.url;
 
 const courseSessionTitle = computed(() => {
-  if (props.dueDate.course_session) {
+  if (props.dueDate.course_session_id) {
     return (
-      courseSessionsStore.getCourseSessionById(props.dueDate.course_session)?.title ??
-      ""
+      courseSessionsStore.getCourseSessionById(props.dueDate.course_session_id)
+        ?.title ?? ""
     );
   }
   return "";
diff --git a/client/src/components/dueDates/dueDatesTestData.ts b/client/src/components/dueDates/dueDatesTestData.ts
deleted file mode 100644
index fe14ff32..00000000
--- a/client/src/components/dueDates/dueDatesTestData.ts
+++ /dev/null
@@ -1,60 +0,0 @@
-import dayjs from "dayjs";
-
-export const dueDatesTestData = () => {
-  return [
-    {
-      id: 1,
-      start: dayjs("2023-06-14T15:00:00+02:00"),
-      end: dayjs("2023-06-14T18:00:00+02:00"),
-      title: "Präsenzkurs Kickoff",
-      url: "/course/überbetriebliche-kurse/learn/kickoff/präsenzkurs-kickoff",
-      course_session: 2,
-      page: 383,
-    },
-    {
-      id: 2,
-      start: dayjs("2023-06-15T15:00:00+02:00"),
-      end: dayjs("2023-06-15T18:00:00+02:00"),
-      title: "Präsenzkurs Basis",
-      url: "/course/überbetriebliche-kurse/learn/basis/präsenzkurs-basis",
-      course_session: 2,
-      page: 397,
-    },
-    {
-      id: 3,
-      start: dayjs("2023-06-16T15:00:00+02:00"),
-      end: dayjs("2023-06-16T18:00:00+02:00"),
-      title: "Präsenzkurs Fahrzeug",
-      url: "/course/überbetriebliche-kurse/learn/fahrzeug/präsenzkurs-fahrzeug",
-      course_session: 2,
-      page: 413,
-    },
-    {
-      id: 4,
-      start: dayjs("2023-06-16T15:00:00+02:00"),
-      end: dayjs("2023-06-16T18:00:00+02:00"),
-      title: "Präsenzkurs Flugzeuge",
-      url: "/course/überbetriebliche-kurse/learn/fahrzeug/präsenzkurs-fahrzeug",
-      course_session: 2,
-      page: 413,
-    },
-    {
-      id: 5,
-      start: dayjs("2023-07-16T11:00:00+02:00"),
-      end: dayjs("2023-07-16T18:00:00+02:00"),
-      title: "Präsenzkurs Motorräder",
-      url: "/course/überbetriebliche-kurse/learn/fahrzeug/präsenzkurs-fahrzeug",
-      course_session: 2,
-      page: 413,
-    },
-    {
-      id: 6,
-      start: dayjs("2023-08-09T15:00:00+02:00"),
-      end: dayjs("2023-08-09T19:00:00+02:00"),
-      title: "Präsenzkurs Fahrräder",
-      url: "/course/überbetriebliche-kurse/learn/fahrzeug/präsenzkurs-fahrzeug",
-      course_session: 2,
-      page: 413,
-    },
-  ];
-};
diff --git a/client/src/components/feedback/feedbackSummary.vue b/client/src/components/feedback/feedbackSummary.vue
index 967ba7cc..bccfa7bb 100644
--- a/client/src/components/feedback/feedbackSummary.vue
+++ b/client/src/components/feedback/feedbackSummary.vue
@@ -37,7 +37,7 @@ import { onMounted, ref, watch } from "vue";
 import type { Circle } from "@/services/circle";
 
 interface FeedbackSummary {
-  circle_id: number;
+  circle_id: string;
   count: number;
 }
 
@@ -65,7 +65,7 @@ function makeSummary(
 const props = defineProps<{
   selctedCircles: string[];
   circles: Circle[];
-  courseSessionId: number;
+  courseSessionId: string;
   url: string;
 }>();
 
diff --git a/client/src/components/header/AccountMenuContent.stories.ts b/client/src/components/header/AccountMenuContent.stories.ts
index 4b715451..4af4d2de 100644
--- a/client/src/components/header/AccountMenuContent.stories.ts
+++ b/client/src/components/header/AccountMenuContent.stories.ts
@@ -23,11 +23,11 @@ type Story = StoryObj<typeof AccountMenuContent>;
 
 const courseSessions = [
   {
-    id: 1,
+    id: "1",
     title: "Bern 2023 a",
   },
   {
-    id: 2,
+    id: "2",
     title: "Zürich 2023 a",
   },
 ];
diff --git a/client/src/components/header/AccountMenuContent.vue b/client/src/components/header/AccountMenuContent.vue
index 166ce523..91f12f17 100644
--- a/client/src/components/header/AccountMenuContent.vue
+++ b/client/src/components/header/AccountMenuContent.vue
@@ -6,7 +6,7 @@ import type { CourseSession } from "@/types";
 const props = defineProps<{
   courseSessions: CourseSession[];
   user: UserState;
-  selectedCourseSession?: number;
+  selectedCourseSession?: string;
 }>();
 
 const emit = defineEmits(["selectCourseSession", "logout"]);
diff --git a/client/src/components/header/CoursePreviewBar.vue b/client/src/components/header/CoursePreviewBar.vue
index f0d92383..c2bf4259 100644
--- a/client/src/components/header/CoursePreviewBar.vue
+++ b/client/src/components/header/CoursePreviewBar.vue
@@ -2,7 +2,7 @@
 import { useTranslation } from "i18next-vue";
 import { useRouteLookups } from "@/utils/route";
 import { useCurrentCourseSession } from "@/composables";
-import { getCompetenceBaseUrl } from "@/utils/utils";
+import { getCompetenceNaviUrl, getLearningPathUrl } from "@/utils/utils";
 
 const { inCompetenceProfile, inLearningPath } = useRouteLookups();
 const courseSession = useCurrentCourseSession();
@@ -24,7 +24,7 @@ const { t } = useTranslation();
           <div class="flex space-x-8">
             <router-link
               data-cy="preview-learn-path-link"
-              :to="courseSession.learning_path_url"
+              :to="getLearningPathUrl(courseSession.course.slug)"
               class="preview-nav-item"
               :class="{ 'preview-nav-item--active': inLearningPath() }"
             >
@@ -33,7 +33,7 @@ const { t } = useTranslation();
 
             <router-link
               data-cy="preview-competence-profile-link"
-              :to="getCompetenceBaseUrl(courseSession)"
+              :to="getCompetenceNaviUrl(courseSession.course.slug)"
               class="preview-nav-item"
               :class="{ 'preview-nav-item--active': inCompetenceProfile() }"
             >
diff --git a/client/src/components/header/CourseSessionsMenu.vue b/client/src/components/header/CourseSessionsMenu.vue
index 2212b07c..6aca1aee 100644
--- a/client/src/components/header/CourseSessionsMenu.vue
+++ b/client/src/components/header/CourseSessionsMenu.vue
@@ -36,7 +36,7 @@ export interface Item {
 
 export interface Props {
   items: CourseSession[];
-  selected?: number;
+  selected?: string;
 }
 
 const props = defineProps<Props>();
diff --git a/client/src/components/header/MainNavigationBar.vue b/client/src/components/header/MainNavigationBar.vue
index c95e586e..836f8f40 100644
--- a/client/src/components/header/MainNavigationBar.vue
+++ b/client/src/components/header/MainNavigationBar.vue
@@ -15,7 +15,12 @@ import { breakpointsTailwind, useBreakpoints } from "@vueuse/core";
 import { computed, onMounted, reactive } from "vue";
 import { useTranslation } from "i18next-vue";
 import CoursePreviewBar from "@/components/header/CoursePreviewBar.vue";
-import { getCompetenceBaseUrl } from "@/utils/utils";
+import {
+  getCockpitUrl,
+  getCompetenceNaviUrl,
+  getLearningPathUrl,
+  getMediaCenterUrl,
+} from "@/utils/utils";
 
 log.debug("MainNavigationBar created");
 
@@ -71,7 +76,9 @@ onMounted(() => {
         v-if="userStore.loggedIn"
         :show="state.showMobileNavigationMenu"
         :course-session="courseSessionsStore.currentCourseSession"
-        :media-url="courseSessionsStore.currentCourseSession?.media_library_url"
+        :media-url="
+          getMediaCenterUrl(courseSessionsStore.currentCourseSession?.course?.slug)
+        "
         :user="userStore"
         @closemodal="state.showMobileNavigationMenu = false"
         @logout="userStore.handleLogout()"
@@ -129,7 +136,11 @@ onMounted(() => {
                   <template v-if="courseSessionsStore.currentCourseSessionHasCockpit">
                     <router-link
                       data-cy="navigation-cockpit-link"
-                      :to="`${courseSessionsStore.currentCourseSession.course_url}/cockpit`"
+                      :to="
+                        getCockpitUrl(
+                          courseSessionsStore.currentCourseSession.course.slug
+                        )
+                      "
                       class="nav-item"
                       :class="{ 'nav-item--active': inCockpit() }"
                     >
@@ -138,7 +149,11 @@ onMounted(() => {
 
                     <router-link
                       data-cy="navigation-preview-link"
-                      :to="courseSessionsStore.currentCourseSession.learning_path_url"
+                      :to="
+                        getLearningPathUrl(
+                          courseSessionsStore.currentCourseSession.course.slug
+                        )
+                      "
                       target="_blank"
                       class="nav-item"
                     >
@@ -151,7 +166,11 @@ onMounted(() => {
                   <template v-else>
                     <router-link
                       data-cy="navigation-learning-path-link"
-                      :to="courseSessionsStore.currentCourseSession.learning_path_url"
+                      :to="
+                        getLearningPathUrl(
+                          courseSessionsStore.currentCourseSession.course.slug
+                        )
+                      "
                       class="nav-item"
                       :class="{ 'nav-item--active': inLearningPath() }"
                     >
@@ -161,7 +180,9 @@ onMounted(() => {
                     <router-link
                       data-cy="navigation-competence-profile-link"
                       :to="
-                        getCompetenceBaseUrl(courseSessionsStore.currentCourseSession)
+                        getCompetenceNaviUrl(
+                          courseSessionsStore.currentCourseSession.course.slug
+                        )
                       "
                       class="nav-item"
                       :class="{ 'nav-item--active': inCompetenceProfile() }"
@@ -176,7 +197,11 @@ onMounted(() => {
             <div class="flex items-stretch justify-start space-x-8">
               <router-link
                 v-if="inCourse() && courseSessionsStore.currentCourseSession"
-                :to="courseSessionsStore.currentCourseSession.media_library_url"
+                :to="
+                  getMediaCenterUrl(
+                    courseSessionsStore.currentCourseSession.course.slug
+                  )
+                "
                 data-cy="medialibrary-link"
                 class="nav-item-no-mobile"
                 :class="{ 'nav-item--active': inMediaLibrary() }"
diff --git a/client/src/components/header/MobileMenu.vue b/client/src/components/header/MobileMenu.vue
index 63bd914e..c2424be2 100644
--- a/client/src/components/header/MobileMenu.vue
+++ b/client/src/components/header/MobileMenu.vue
@@ -4,7 +4,12 @@ import { useCourseSessionsStore } from "@/stores/courseSessions";
 import type { UserState } from "@/stores/user";
 import type { CourseSession } from "@/types";
 import { useRouter } from "vue-router";
-import { getCompetenceBaseUrl } from "@/utils/utils";
+import {
+  getCockpitUrl,
+  getCompetenceNaviUrl,
+  getLearningPathUrl,
+  getMediaCenterUrl,
+} from "@/utils/utils";
 
 const router = useRouter();
 
@@ -60,7 +65,7 @@ const courseSessionsStore = useCourseSessionsStore();
                 <li class="mb-6">
                   <button
                     data-cy="navigation-mobile-cockpit-link"
-                    @click="clickLink(`${courseSession.course_url}/cockpit`)"
+                    @click="clickLink(getCockpitUrl(courseSession.course.slug))"
                   >
                     {{ $t("cockpit.title") }}
                   </button>
@@ -68,7 +73,7 @@ const courseSessionsStore = useCourseSessionsStore();
                 <li class="mb-6">
                   <button
                     data-cy="navigation-mobile-preview-link"
-                    @click="clickLink(courseSession.learning_path_url)"
+                    @click="clickLink(getLearningPathUrl(courseSession.course.slug))"
                   >
                     {{ $t("a.VorschauTeilnehmer") }}
                   </button>
@@ -78,7 +83,7 @@ const courseSessionsStore = useCourseSessionsStore();
                 <li class="mb-6">
                   <button
                     data-cy="navigation-mobile-learning-path-link"
-                    @click="clickLink(courseSession.learning_path_url)"
+                    @click="clickLink(getLearningPathUrl(courseSession.course.slug))"
                   >
                     {{ $t("general.learningPath") }}
                   </button>
@@ -86,7 +91,7 @@ const courseSessionsStore = useCourseSessionsStore();
                 <li class="mb-6">
                   <button
                     data-cy="navigation-mobile-competence-profile-link"
-                    @click="clickLink(getCompetenceBaseUrl(courseSession))"
+                    @click="clickLink(getCompetenceNaviUrl(courseSession.course.slug))"
                   >
                     {{ $t("competences.title") }}
                   </button>
@@ -95,7 +100,7 @@ const courseSessionsStore = useCourseSessionsStore();
               <li class="mb-6">
                 <button
                   data-cy="medialibrary-link"
-                  @click="clickLink(`${courseSession?.media_library_url}`)"
+                  @click="clickLink(getMediaCenterUrl(courseSession.course.slug))"
                 >
                   {{ $t("a.Mediathek") }}
                 </button>
diff --git a/client/src/components/learningPath/LearningPathDiagram.vue b/client/src/components/learningPath/LearningPathDiagram.vue
index f6480737..3ba82e82 100644
--- a/client/src/components/learningPath/LearningPathDiagram.vue
+++ b/client/src/components/learningPath/LearningPathDiagram.vue
@@ -10,19 +10,22 @@ export interface Props {
   diagramType?: DiagramType;
   learningPath: LearningPath;
   // set to undefined (default) to show all circles
-  showCircleTranslationKeys?: string[];
+  showCircleSlugs?: string[];
 }
 
 const props = withDefaults(defineProps<Props>(), {
   diagramType: "horizontal",
-  showCircleTranslationKeys: undefined,
+  showCircleSlugs: undefined,
 });
 
-const circles = computed(() =>
-  props.learningPath.circles.filter(
-    (c) => props.showCircleTranslationKeys?.includes(c.translation_key) ?? true
-  )
-);
+const circles = computed(() => {
+  if (props.showCircleSlugs?.length) {
+    return props.learningPath.circles.filter(
+      (c) => props.showCircleSlugs?.includes(c.slug) ?? true
+    );
+  }
+  return props.learningPath.circles;
+});
 
 const wrapperClasses = computed(() => {
   let classes = "flex my-5";
diff --git a/client/src/components/ui/ItDropdownSelect.vue b/client/src/components/ui/ItDropdownSelect.vue
index 9421c218..1897de01 100644
--- a/client/src/components/ui/ItDropdownSelect.vue
+++ b/client/src/components/ui/ItDropdownSelect.vue
@@ -20,7 +20,7 @@ const emit = defineEmits<{
 const props = withDefaults(defineProps<Props>(), {
   modelValue: () => {
     return {
-      id: -1,
+      id: "-1",
       name: "",
     };
   },
diff --git a/client/src/composables.ts b/client/src/composables.ts
index ffd1b590..e2a4d99c 100644
--- a/client/src/composables.ts
+++ b/client/src/composables.ts
@@ -1,8 +1,12 @@
 import { useCourseSessionsStore } from "@/stores/courseSessions";
-import type { CourseSession } from "@/types";
+import type { CourseSession, CourseSessionDetail } from "@/types";
+import { useQuery } from "@urql/vue";
+
+import { COURSE_SESSION_DETAIL_QUERY } from "@/graphql/queries";
+import { useUserStore } from "@/stores/user";
 import log from "loglevel";
 import type { ComputedRef } from "vue";
-import { computed } from "vue";
+import { computed, ref, watchEffect } from "vue";
 
 export function useCurrentCourseSession() {
   /**
@@ -28,3 +32,94 @@ export function useCurrentCourseSession() {
   );
   return result;
 }
+
+export function useCourseSessionDetailQuery(courSessionId?: string) {
+  if (!courSessionId) {
+    courSessionId = useCurrentCourseSession().value.id;
+  }
+  const queryResult = useQuery({
+    query: COURSE_SESSION_DETAIL_QUERY,
+    variables: {
+      courseSessionId: courSessionId,
+    },
+  });
+
+  const courseSessionDetail = computed(() => {
+    return queryResult.data.value?.course_session as CourseSessionDetail | undefined;
+  });
+
+  function findAssignmentByAssignmentId(assignmentId: string) {
+    return (courseSessionDetail.value?.assignments ?? []).find((a) => {
+      return a.learning_content?.content_assignment?.id === assignmentId;
+    });
+  }
+
+  function findAssignment(learningContentId: string) {
+    return (courseSessionDetail.value?.assignments ?? []).find((a) => {
+      return a.learning_content.id === learningContentId;
+    });
+  }
+
+  function findEdoniqTest(learningContentId: string) {
+    return (courseSessionDetail.value?.edoniq_tests ?? []).find((e) => {
+      return e.learning_content.id === learningContentId;
+    });
+  }
+
+  function findAttendanceCourse(learningContentId: string) {
+    return (courseSessionDetail.value?.attendance_courses ?? []).find((e) => {
+      return e.learning_content.id === learningContentId;
+    });
+  }
+
+  function findUser(userId: string) {
+    return (courseSessionDetail.value?.users ?? []).find((u) => {
+      return u.user_id === userId;
+    });
+  }
+
+  function findCurrentUser() {
+    const userStore = useUserStore();
+    const userId = userStore.id;
+    return findUser(userId);
+  }
+
+  function filterMembers() {
+    return (courseSessionDetail.value?.users ?? []).filter((u) => {
+      return u.role === "MEMBER";
+    });
+  }
+
+  function filterCircleExperts(circleSlug: string) {
+    return (courseSessionDetail.value?.users ?? []).filter((u) => {
+      return u.role === "EXPERT" && u.circles.map((c) => c.slug).includes(circleSlug);
+    });
+  }
+
+  const dataLoaded = ref(false);
+
+  function waitForData() {
+    return new Promise((resolve) => {
+      watchEffect(() => {
+        if (queryResult.data.value) {
+          dataLoaded.value = true;
+          resolve(queryResult.data.value);
+        }
+      });
+    });
+  }
+
+  return {
+    ...queryResult,
+    courseSessionDetail,
+    waitForData,
+    findAssignmentByAssignmentId,
+    findAssignment,
+    findEdoniqTest,
+    findAttendanceCourse,
+    findUser,
+    findCurrentUser,
+    filterMembers,
+    filterCircleExperts,
+  };
+}
diff --git a/client/src/gql/gql.ts b/client/src/gql/gql.ts
index 3876841a..fdde1523 100644
--- a/client/src/gql/gql.ts
+++ b/client/src/gql/gql.ts
@@ -18,8 +18,9 @@ const documents = {
     "\n  fragment CoursePageFields on CoursePageInterface {\n    title\n    id\n    slug\n    content_type\n    frontend_url\n  }\n": types.CoursePageFieldsFragmentDoc,
     "\n  query attendanceCheckQuery($courseSessionId: ID!) {\n    course_session_attendance_course(id: $courseSessionId) {\n      id\n      attendance_user_list {\n        user_id\n        status\n      }\n    }\n  }\n": types.AttendanceCheckQueryDocument,
     "\n  query assignmentCompletionQuery(\n    $assignmentId: ID!\n    $courseSessionId: ID!\n    $learningContentId: ID\n    $assignmentUserId: UUID\n  ) {\n    assignment(id: $assignmentId) {\n      assignment_type\n      needs_expert_evaluation\n      max_points\n      content_type\n      effort_required\n      evaluation_description\n      evaluation_document_url\n      evaluation_tasks\n      id\n      intro_text\n      performance_objectives\n      slug\n      tasks\n      title\n      translation_key\n      competence_certificate {\n        ...CoursePageFields\n      }\n    }\n    assignment_completion(\n      assignment_id: $assignmentId\n      course_session_id: $courseSessionId\n      assignment_user_id: $assignmentUserId\n      learning_content_page_id: $learningContentId\n    ) {\n      id\n      completion_status\n      submitted_at\n      evaluation_submitted_at\n      evaluation_user {\n        id\n      }\n      assignment_user {\n        id\n      }\n      evaluation_points\n      evaluation_max_points\n      evaluation_passed\n      edoniq_extended_time_flag\n      completion_data\n    }\n  }\n": types.AssignmentCompletionQueryDocument,
-    "\n  query courseQuery($courseId: Int!) {\n    course(id: $courseId) {\n      id\n      slug\n      title\n      category_name\n      learning_path {\n        id\n      }\n    }\n  }\n": types.CourseQueryDocument,
+    "\n  query courseQuery($courseId: ID!) {\n    course(id: $courseId) {\n      id\n      slug\n      title\n      category_name\n      learning_path {\n        id\n      }\n    }\n  }\n": types.CourseQueryDocument,
     "\n  query competenceCertificateQuery($courseSlug: String!, $courseSessionId: ID!) {\n    competence_certificate_list(course_slug: $courseSlug) {\n      ...CoursePageFields\n      competence_certificates {\n        ...CoursePageFields\n        assignments {\n          ...CoursePageFields\n          assignment_type\n          max_points\n          completion(course_session_id: $courseSessionId) {\n            id\n            completion_status\n            submitted_at\n            evaluation_points\n            evaluation_max_points\n            evaluation_passed\n          }\n          learning_content {\n            title\n            id\n            slug\n            content_type\n            frontend_url\n            circle {\n              ...CoursePageFields\n            }\n          }\n        }\n      }\n    }\n  }\n": types.CompetenceCertificateQueryDocument,
+    "\n  query courseSessionDetail($courseSessionId: ID!) {\n    course_session(id: $courseSessionId) {\n      id\n      title\n      course {\n        id\n        title\n        slug\n      }\n      users {\n        id\n        user_id\n        first_name\n        last_name\n        email\n        avatar_url\n        role\n        circles {\n          id\n          title\n          slug\n        }\n      }\n      attendance_courses {\n        id\n        location\n        trainer\n        due_date {\n          id\n          start\n          end\n        }\n        learning_content_id\n        learning_content {\n          id\n          title\n          circle {\n            id\n            title\n            slug\n          }\n        }\n      }\n      assignments {\n        id\n        submission_deadline {\n          id\n          start\n        }\n        evaluation_deadline {\n          id\n          start\n        }\n        learning_content {\n          id\n          title\n          content_assignment {\n            id\n            title\n            assignment_type\n          }\n        }\n      }\n      edoniq_tests {\n        id\n        deadline {\n          id\n          start\n          end\n        }\n        learning_content {\n          id\n          title\n          content_assignment {\n            id\n            title\n            assignment_type\n          }\n        }\n      }\n    }\n  }\n": types.CourseSessionDetailDocument,
     "\n  mutation SendFeedbackMutation(\n    $courseSessionId: ID!\n    $learningContentId: ID!\n    $data: GenericScalar!\n    $submitted: Boolean\n  ) {\n    send_feedback(\n      course_session_id: $courseSessionId\n      learning_content_page_id: $learningContentId\n      data: $data\n      submitted: $submitted\n    ) {\n      feedback_response {\n        id\n        data\n        submitted\n      }\n      errors {\n        field\n        messages\n      }\n    }\n  }\n": types.SendFeedbackMutationDocument,
 };
 
@@ -60,11 +61,15 @@ export function graphql(source: "\n  query assignmentCompletionQuery(\n    $assi
 /**
  * The graphql function is used to parse GraphQL queries into a document that can be used by GraphQL clients.
  */
-export function graphql(source: "\n  query courseQuery($courseId: Int!) {\n    course(id: $courseId) {\n      id\n      slug\n      title\n      category_name\n      learning_path {\n        id\n      }\n    }\n  }\n"): (typeof documents)["\n  query courseQuery($courseId: Int!) {\n    course(id: $courseId) {\n      id\n      slug\n      title\n      category_name\n      learning_path {\n        id\n      }\n    }\n  }\n"];
+export function graphql(source: "\n  query courseQuery($courseId: ID!) {\n    course(id: $courseId) {\n      id\n      slug\n      title\n      category_name\n      learning_path {\n        id\n      }\n    }\n  }\n"): (typeof documents)["\n  query courseQuery($courseId: ID!) {\n    course(id: $courseId) {\n      id\n      slug\n      title\n      category_name\n      learning_path {\n        id\n      }\n    }\n  }\n"];
 /**
  * The graphql function is used to parse GraphQL queries into a document that can be used by GraphQL clients.
  */
 export function graphql(source: "\n  query competenceCertificateQuery($courseSlug: String!, $courseSessionId: ID!) {\n    competence_certificate_list(course_slug: $courseSlug) {\n      ...CoursePageFields\n      competence_certificates {\n        ...CoursePageFields\n        assignments {\n          ...CoursePageFields\n          assignment_type\n          max_points\n          completion(course_session_id: $courseSessionId) {\n            id\n            completion_status\n            submitted_at\n            evaluation_points\n            evaluation_max_points\n            evaluation_passed\n          }\n          learning_content {\n            title\n            id\n            slug\n            content_type\n            frontend_url\n            circle {\n              ...CoursePageFields\n            }\n          }\n        }\n      }\n    }\n  }\n"): (typeof documents)["\n  query competenceCertificateQuery($courseSlug: String!, $courseSessionId: ID!) {\n    competence_certificate_list(course_slug: $courseSlug) {\n      ...CoursePageFields\n      competence_certificates {\n        ...CoursePageFields\n        assignments {\n          ...CoursePageFields\n          assignment_type\n          max_points\n          completion(course_session_id: $courseSessionId) {\n            id\n            completion_status\n            submitted_at\n            evaluation_points\n            evaluation_max_points\n            evaluation_passed\n          }\n          learning_content {\n            title\n            id\n            slug\n            content_type\n            frontend_url\n            circle {\n              ...CoursePageFields\n            }\n          }\n        }\n      }\n    }\n  }\n"];
+/**
+ * The graphql function is used to parse GraphQL queries into a document that can be used by GraphQL clients.
+ */
+export function graphql(source: "\n  query courseSessionDetail($courseSessionId: ID!) {\n    course_session(id: $courseSessionId) {\n      id\n      title\n      course {\n        id\n        title\n        slug\n      }\n      users {\n        id\n        user_id\n        first_name\n        last_name\n        email\n        avatar_url\n        role\n        circles {\n          id\n          title\n          slug\n        }\n      }\n      attendance_courses {\n        id\n        location\n        trainer\n        due_date {\n          id\n          start\n          end\n        }\n        learning_content_id\n        learning_content {\n          id\n          title\n          circle {\n            id\n            title\n            slug\n          }\n        }\n      }\n      assignments {\n        id\n        submission_deadline {\n          id\n          start\n        }\n        evaluation_deadline {\n          id\n          start\n        }\n        learning_content {\n          id\n          title\n          content_assignment {\n            id\n            title\n            assignment_type\n          }\n        }\n      }\n      edoniq_tests {\n        id\n        deadline {\n          id\n          start\n          end\n        }\n        learning_content {\n          id\n          title\n          content_assignment {\n            id\n            title\n            assignment_type\n          }\n        }\n      }\n    }\n  }\n"): (typeof documents)["\n  query courseSessionDetail($courseSessionId: ID!) {\n    course_session(id: $courseSessionId) {\n      id\n      title\n      course {\n        id\n        title\n        slug\n      }\n      users {\n        id\n        user_id\n        first_name\n        last_name\n        email\n        avatar_url\n        role\n        circles {\n          id\n          title\n          slug\n        }\n      }\n      attendance_courses {\n        id\n        location\n        trainer\n        due_date {\n          id\n          start\n          end\n        }\n        learning_content_id\n        learning_content {\n          id\n          title\n          circle {\n            id\n            title\n            slug\n          }\n        }\n      }\n      assignments {\n        id\n        submission_deadline {\n          id\n          start\n        }\n        evaluation_deadline {\n          id\n          start\n        }\n        learning_content {\n          id\n          title\n          content_assignment {\n            id\n            title\n            assignment_type\n          }\n        }\n      }\n      edoniq_tests {\n        id\n        deadline {\n          id\n          start\n          end\n        }\n        learning_content {\n          id\n          title\n          content_assignment {\n            id\n            title\n            assignment_type\n          }\n        }\n      }\n    }\n  }\n"];
 /**
  * The graphql function is used to parse GraphQL queries into a document that can be used by GraphQL clients.
  */
diff --git a/client/src/gql/graphql.ts b/client/src/gql/graphql.ts
index 9725ff3a..0f417008 100644
--- a/client/src/gql/graphql.ts
+++ b/client/src/gql/graphql.ts
@@ -14,6 +14,12 @@ export type Scalars = {
   Boolean: { input: boolean; output: boolean; }
   Int: { input: number; output: number; }
   Float: { input: number; output: number; }
+  /**
+   * The `Date` scalar type represents a Date
+   * value as specified by
+   * [iso8601](https://en.wikipedia.org/wiki/ISO_8601).
+   */
+  Date: { input: any; output: any; }
   /**
    * The `DateTime` scalar type represents a DateTime
    * value as specified by
@@ -77,6 +83,7 @@ export type AssignmentCompletionObjectType = {
   assignment_user: UserType;
   completion_data?: Maybe<Scalars['GenericScalar']['output']>;
   completion_status: AssignmentAssignmentCompletionCompletionStatusChoices;
+  course_session: CourseSessionObjectType;
   created_at: Scalars['DateTime']['output'];
   edoniq_extended_time_flag: Scalars['Boolean']['output'];
   evaluation_max_points?: Maybe<Scalars['Float']['output']>;
@@ -137,7 +144,7 @@ export type AssignmentObjectTypeCompletionArgs = {
 
 export type AttendanceCourseUserMutation = {
   __typename?: 'AttendanceCourseUserMutation';
-  course_session_attendance_course?: Maybe<CourseSessionAttendanceCourseType>;
+  course_session_attendance_course?: Maybe<CourseSessionAttendanceCourseObjectType>;
 };
 
 export type AttendanceUserInputType = {
@@ -145,13 +152,8 @@ export type AttendanceUserInputType = {
   user_id: Scalars['UUID']['input'];
 };
 
-/** An enumeration. */
-export type AttendanceUserStatus =
-  | 'ABSENT'
-  | 'PRESENT';
-
-export type AttendanceUserType = {
-  __typename?: 'AttendanceUserType';
+export type AttendanceUserObjectType = {
+  __typename?: 'AttendanceUserObjectType';
   email?: Maybe<Scalars['String']['output']>;
   first_name?: Maybe<Scalars['String']['output']>;
   last_name?: Maybe<Scalars['String']['output']>;
@@ -159,6 +161,21 @@ export type AttendanceUserType = {
   user_id: Scalars['UUID']['output'];
 };
 
+/** An enumeration. */
+export type AttendanceUserStatus =
+  | 'ABSENT'
+  | 'PRESENT';
+
+export type CircleDocumentObjectType = {
+  __typename?: 'CircleDocumentObjectType';
+  course_session: CourseSessionObjectType;
+  file_name?: Maybe<Scalars['String']['output']>;
+  id: Scalars['UUID']['output'];
+  learning_sequence: LearningSequenceObjectType;
+  name: Scalars['String']['output'];
+  url?: Maybe<Scalars['String']['output']>;
+};
+
 export type CircleObjectType = CoursePageInterface & {
   __typename?: 'CircleObjectType';
   circle?: Maybe<CircleObjectType>;
@@ -255,19 +272,94 @@ export type CoursePageInterface = {
   translation_key?: Maybe<Scalars['String']['output']>;
 };
 
-export type CourseSessionAttendanceCourseType = {
-  __typename?: 'CourseSessionAttendanceCourseType';
-  attendance_user_list?: Maybe<Array<Maybe<AttendanceUserType>>>;
+export type CourseSessionAssignmentObjectType = {
+  __typename?: 'CourseSessionAssignmentObjectType';
   course_session_id?: Maybe<Scalars['ID']['output']>;
-  due_date_id?: Maybe<Scalars['ID']['output']>;
-  end?: Maybe<Scalars['DateTime']['output']>;
+  evaluation_deadline?: Maybe<DueDateObjectType>;
   id: Scalars['ID']['output'];
+  learning_content?: Maybe<LearningContentAssignmentObjectType>;
+  learning_content_id?: Maybe<Scalars['ID']['output']>;
+  submission_deadline?: Maybe<DueDateObjectType>;
+};
+
+export type CourseSessionAttendanceCourseObjectType = {
+  __typename?: 'CourseSessionAttendanceCourseObjectType';
+  attendance_user_list?: Maybe<Array<Maybe<AttendanceUserObjectType>>>;
+  course_session_id?: Maybe<Scalars['ID']['output']>;
+  due_date?: Maybe<DueDateObjectType>;
+  id: Scalars['ID']['output'];
+  learning_content?: Maybe<LearningContentAttendanceCourseObjectType>;
   learning_content_id?: Maybe<Scalars['ID']['output']>;
   location: Scalars['String']['output'];
-  start?: Maybe<Scalars['DateTime']['output']>;
   trainer: Scalars['String']['output'];
 };
 
+export type CourseSessionEdoniqTestObjectType = {
+  __typename?: 'CourseSessionEdoniqTestObjectType';
+  course_session_id?: Maybe<Scalars['ID']['output']>;
+  deadline?: Maybe<DueDateObjectType>;
+  id: Scalars['ID']['output'];
+  learning_content?: Maybe<LearningContentEdoniqTestObjectType>;
+  learning_content_id?: Maybe<Scalars['ID']['output']>;
+};
+
+export type CourseSessionObjectType = {
+  __typename?: 'CourseSessionObjectType';
+  assignments?: Maybe<Array<Maybe<CourseSessionAssignmentObjectType>>>;
+  attendance_courses?: Maybe<Array<Maybe<CourseSessionAttendanceCourseObjectType>>>;
+  course: CourseObjectType;
+  created_at: Scalars['DateTime']['output'];
+  documents?: Maybe<Array<Maybe<CircleDocumentObjectType>>>;
+  edoniq_tests?: Maybe<Array<Maybe<CourseSessionEdoniqTestObjectType>>>;
+  end_date?: Maybe<Scalars['Date']['output']>;
+  id: Scalars['ID']['output'];
+  start_date?: Maybe<Scalars['Date']['output']>;
+  title: Scalars['String']['output'];
+  updated_at: Scalars['DateTime']['output'];
+  users?: Maybe<Array<Maybe<CourseSessionUserObjectsType>>>;
+};
+
+export type CourseSessionUserExpertCircleType = {
+  __typename?: 'CourseSessionUserExpertCircleType';
+  id?: Maybe<Scalars['ID']['output']>;
+  slug?: Maybe<Scalars['String']['output']>;
+  title?: Maybe<Scalars['String']['output']>;
+};
+
+export type CourseSessionUserObjectsType = {
+  __typename?: 'CourseSessionUserObjectsType';
+  avatar_url?: Maybe<Scalars['String']['output']>;
+  circles?: Maybe<Array<Maybe<CourseSessionUserExpertCircleType>>>;
+  email?: Maybe<Scalars['String']['output']>;
+  first_name?: Maybe<Scalars['String']['output']>;
+  id: Scalars['UUID']['output'];
+  last_name?: Maybe<Scalars['String']['output']>;
+  role?: Maybe<Scalars['String']['output']>;
+  user_id?: Maybe<Scalars['UUID']['output']>;
+};
+
+export type DueDateObjectType = {
+  __typename?: 'DueDateObjectType';
+  /** Translation Key aus dem Frontend */
+  assignment_type_translation_key: Scalars['String']['output'];
+  course_session: CourseSessionObjectType;
+  /** Translation Key aus dem Frontend */
+  date_type_translation_key: Scalars['String']['output'];
+  /** Enddatum ist optional */
+  end?: Maybe<Scalars['DateTime']['output']>;
+  id: Scalars['ID']['output'];
+  /** Nur aktivieren, wenn man die Felder manuell überschreiben will */
+  manual_override_fields: Scalars['Boolean']['output'];
+  /** Startdatum ist Pflicht */
+  start?: Maybe<Scalars['DateTime']['output']>;
+  /** Überschreibt den Untertitel bei `assignment_type_translation_key` und `date_type_translation_key` */
+  subtitle: Scalars['String']['output'];
+  /** Title wird standarmässig vom LearningContent übernommen */
+  title: Scalars['String']['output'];
+  /** URL wird vom LearningContent übernommen (sichtbar für Member/Teilnehmer) */
+  url: Scalars['String']['output'];
+};
+
 export type ErrorType = {
   __typename?: 'ErrorType';
   field: Scalars['String']['output'];
@@ -331,6 +423,23 @@ export type LearningContentDocumentListObjectType = LearningContentInterface & {
   translation_key?: Maybe<Scalars['String']['output']>;
 };
 
+export type LearningContentEdoniqTestObjectType = LearningContentInterface & {
+  __typename?: 'LearningContentEdoniqTestObjectType';
+  circle?: Maybe<CircleObjectType>;
+  content?: Maybe<Scalars['String']['output']>;
+  content_assignment?: Maybe<AssignmentObjectType>;
+  content_type?: Maybe<Scalars['String']['output']>;
+  course?: Maybe<CourseObjectType>;
+  description?: Maybe<Scalars['String']['output']>;
+  frontend_url?: Maybe<Scalars['String']['output']>;
+  id?: Maybe<Scalars['ID']['output']>;
+  live?: Maybe<Scalars['Boolean']['output']>;
+  minutes?: Maybe<Scalars['Int']['output']>;
+  slug?: Maybe<Scalars['String']['output']>;
+  title?: Maybe<Scalars['String']['output']>;
+  translation_key?: Maybe<Scalars['String']['output']>;
+};
+
 export type LearningContentFeedbackObjectType = LearningContentInterface & {
   __typename?: 'LearningContentFeedbackObjectType';
   circle?: Maybe<CircleObjectType>;
@@ -426,23 +535,6 @@ export type LearningContentRichTextObjectType = LearningContentInterface & {
   translation_key?: Maybe<Scalars['String']['output']>;
 };
 
-export type LearningContentTestObjectType = LearningContentInterface & {
-  __typename?: 'LearningContentTestObjectType';
-  circle?: Maybe<CircleObjectType>;
-  content?: Maybe<Scalars['String']['output']>;
-  content_assignment?: Maybe<AssignmentObjectType>;
-  content_type?: Maybe<Scalars['String']['output']>;
-  course?: Maybe<CourseObjectType>;
-  description?: Maybe<Scalars['String']['output']>;
-  frontend_url?: Maybe<Scalars['String']['output']>;
-  id?: Maybe<Scalars['ID']['output']>;
-  live?: Maybe<Scalars['Boolean']['output']>;
-  minutes?: Maybe<Scalars['Int']['output']>;
-  slug?: Maybe<Scalars['String']['output']>;
-  title?: Maybe<Scalars['String']['output']>;
-  translation_key?: Maybe<Scalars['String']['output']>;
-};
-
 export type LearningContentVideoObjectType = LearningContentInterface & {
   __typename?: 'LearningContentVideoObjectType';
   circle?: Maybe<CircleObjectType>;
@@ -579,7 +671,8 @@ export type Query = {
   competence_certificate?: Maybe<CompetenceCertificateObjectType>;
   competence_certificate_list?: Maybe<CompetenceCertificateListObjectType>;
   course?: Maybe<CourseObjectType>;
-  course_session_attendance_course?: Maybe<CourseSessionAttendanceCourseType>;
+  course_session?: Maybe<CourseSessionObjectType>;
+  course_session_attendance_course?: Maybe<CourseSessionAttendanceCourseObjectType>;
   learning_content_assignment?: Maybe<LearningContentAssignmentObjectType>;
   learning_content_attendance_course?: Maybe<LearningContentAttendanceCourseObjectType>;
   learning_content_document_list?: Maybe<LearningContentDocumentListObjectType>;
@@ -588,7 +681,7 @@ export type Query = {
   learning_content_media_library?: Maybe<LearningContentMediaLibraryObjectType>;
   learning_content_placeholder?: Maybe<LearningContentPlaceholderObjectType>;
   learning_content_rich_text?: Maybe<LearningContentRichTextObjectType>;
-  learning_content_test?: Maybe<LearningContentTestObjectType>;
+  learning_content_test?: Maybe<LearningContentEdoniqTestObjectType>;
   learning_content_video?: Maybe<LearningContentVideoObjectType>;
   learning_path?: Maybe<LearningPathObjectType>;
 };
@@ -629,7 +722,12 @@ export type QueryCompetenceCertificateListArgs = {
 
 
 export type QueryCourseArgs = {
-  id?: InputMaybe<Scalars['Int']['input']>;
+  id?: InputMaybe<Scalars['ID']['input']>;
+};
+
+
+export type QueryCourseSessionArgs = {
+  id?: InputMaybe<Scalars['ID']['input']>;
 };
 
 
@@ -686,7 +784,7 @@ export type AttendanceCheckMutationMutationVariables = Exact<{
 }>;
 
 
-export type AttendanceCheckMutationMutation = { __typename?: 'Mutation', update_course_session_attendance_course_users?: { __typename?: 'AttendanceCourseUserMutation', course_session_attendance_course?: { __typename?: 'CourseSessionAttendanceCourseType', id: string, attendance_user_list?: Array<{ __typename?: 'AttendanceUserType', user_id: any, first_name?: string | null, last_name?: string | null, email?: string | null, status: AttendanceUserStatus } | null> | null } | null } | null };
+export type AttendanceCheckMutationMutation = { __typename?: 'Mutation', update_course_session_attendance_course_users?: { __typename?: 'AttendanceCourseUserMutation', course_session_attendance_course?: { __typename?: 'CourseSessionAttendanceCourseObjectType', id: string, attendance_user_list?: Array<{ __typename?: 'AttendanceUserObjectType', user_id: any, first_name?: string | null, last_name?: string | null, email?: string | null, status: AttendanceUserStatus } | null> | null } | null } | null };
 
 export type UpsertAssignmentCompletionMutationVariables = Exact<{
   assignmentId: Scalars['ID']['input'];
@@ -725,7 +823,7 @@ export type AttendanceCheckQueryQueryVariables = Exact<{
 }>;
 
 
-export type AttendanceCheckQueryQuery = { __typename?: 'Query', course_session_attendance_course?: { __typename?: 'CourseSessionAttendanceCourseType', id: string, attendance_user_list?: Array<{ __typename?: 'AttendanceUserType', user_id: any, status: AttendanceUserStatus } | null> | null } | null };
+export type AttendanceCheckQueryQuery = { __typename?: 'Query', course_session_attendance_course?: { __typename?: 'CourseSessionAttendanceCourseObjectType', id: string, attendance_user_list?: Array<{ __typename?: 'AttendanceUserObjectType', user_id: any, status: AttendanceUserStatus } | null> | null } | null };
 
 export type AssignmentCompletionQueryQueryVariables = Exact<{
   assignmentId: Scalars['ID']['input'];
@@ -741,7 +839,7 @@ export type AssignmentCompletionQueryQuery = { __typename?: 'Query', assignment?
     ) | null } | null, assignment_completion?: { __typename?: 'AssignmentCompletionObjectType', id: any, completion_status: AssignmentAssignmentCompletionCompletionStatusChoices, submitted_at?: any | null, evaluation_submitted_at?: any | null, evaluation_points?: number | null, evaluation_max_points?: number | null, evaluation_passed?: boolean | null, edoniq_extended_time_flag: boolean, completion_data?: any | null, evaluation_user?: { __typename?: 'UserType', id: any } | null, assignment_user: { __typename?: 'UserType', id: any } } | null };
 
 export type CourseQueryQueryVariables = Exact<{
-  courseId: Scalars['Int']['input'];
+  courseId: Scalars['ID']['input'];
 }>;
 
 
@@ -765,6 +863,9 @@ export type CompetenceCertificateQueryQuery = { __typename?: 'Query', competence
           ) | null } | { __typename?: 'LearningContentDocumentListObjectType', title?: string | null, id?: string | null, slug?: string | null, content_type?: string | null, frontend_url?: string | null, circle?: (
             { __typename?: 'CircleObjectType' }
             & { ' $fragmentRefs'?: { 'CoursePageFieldsCircleObjectTypeFragment': CoursePageFieldsCircleObjectTypeFragment } }
+          ) | null } | { __typename?: 'LearningContentEdoniqTestObjectType', title?: string | null, id?: string | null, slug?: string | null, content_type?: string | null, frontend_url?: string | null, circle?: (
+            { __typename?: 'CircleObjectType' }
+            & { ' $fragmentRefs'?: { 'CoursePageFieldsCircleObjectTypeFragment': CoursePageFieldsCircleObjectTypeFragment } }
           ) | null } | { __typename?: 'LearningContentFeedbackObjectType', title?: string | null, id?: string | null, slug?: string | null, content_type?: string | null, frontend_url?: string | null, circle?: (
             { __typename?: 'CircleObjectType' }
             & { ' $fragmentRefs'?: { 'CoursePageFieldsCircleObjectTypeFragment': CoursePageFieldsCircleObjectTypeFragment } }
@@ -780,9 +881,6 @@ export type CompetenceCertificateQueryQuery = { __typename?: 'Query', competence
           ) | null } | { __typename?: 'LearningContentRichTextObjectType', title?: string | null, id?: string | null, slug?: string | null, content_type?: string | null, frontend_url?: string | null, circle?: (
             { __typename?: 'CircleObjectType' }
             & { ' $fragmentRefs'?: { 'CoursePageFieldsCircleObjectTypeFragment': CoursePageFieldsCircleObjectTypeFragment } }
-          ) | null } | { __typename?: 'LearningContentTestObjectType', title?: string | null, id?: string | null, slug?: string | null, content_type?: string | null, frontend_url?: string | null, circle?: (
-            { __typename?: 'CircleObjectType' }
-            & { ' $fragmentRefs'?: { 'CoursePageFieldsCircleObjectTypeFragment': CoursePageFieldsCircleObjectTypeFragment } }
           ) | null } | { __typename?: 'LearningContentVideoObjectType', title?: string | null, id?: string | null, slug?: string | null, content_type?: string | null, frontend_url?: string | null, circle?: (
             { __typename?: 'CircleObjectType' }
             & { ' $fragmentRefs'?: { 'CoursePageFieldsCircleObjectTypeFragment': CoursePageFieldsCircleObjectTypeFragment } }
@@ -794,6 +892,13 @@ export type CompetenceCertificateQueryQuery = { __typename?: 'Query', competence
     & { ' $fragmentRefs'?: { 'CoursePageFieldsCompetenceCertificateListObjectTypeFragment': CoursePageFieldsCompetenceCertificateListObjectTypeFragment } }
   ) | null };
 
+export type CourseSessionDetailQueryVariables = Exact<{
+  courseSessionId: Scalars['ID']['input'];
+}>;
+
+
+export type CourseSessionDetailQuery = { __typename?: 'Query', course_session?: { __typename?: 'CourseSessionObjectType', id: string, title: string, course: { __typename?: 'CourseObjectType', id: string, title: string, slug: string }, users?: Array<{ __typename?: 'CourseSessionUserObjectsType', id: any, user_id?: any | null, first_name?: string | null, last_name?: string | null, email?: string | null, avatar_url?: string | null, role?: string | null, circles?: Array<{ __typename?: 'CourseSessionUserExpertCircleType', id?: string | null, title?: string | null, slug?: string | null } | null> | null } | null> | null, attendance_courses?: Array<{ __typename?: 'CourseSessionAttendanceCourseObjectType', id: string, location: string, trainer: string, learning_content_id?: string | null, due_date?: { __typename?: 'DueDateObjectType', id: string, start?: any | null, end?: any | null } | null, learning_content?: { __typename?: 'LearningContentAttendanceCourseObjectType', id?: string | null, title?: string | null, circle?: { __typename?: 'CircleObjectType', id?: string | null, title?: string | null, slug?: string | null } | null } | null } | null> | null, assignments?: Array<{ __typename?: 'CourseSessionAssignmentObjectType', id: string, submission_deadline?: { __typename?: 'DueDateObjectType', id: string, start?: any | null } | null, evaluation_deadline?: { __typename?: 'DueDateObjectType', id: string, start?: any | null } | null, learning_content?: { __typename?: 'LearningContentAssignmentObjectType', id?: string | null, title?: string | null, content_assignment: { __typename?: 'AssignmentObjectType', id?: string | null, title?: string | null, assignment_type: AssignmentAssignmentAssignmentTypeChoices } } | null } | null> | null, edoniq_tests?: Array<{ __typename?: 'CourseSessionEdoniqTestObjectType', id: string, deadline?: { __typename?: 'DueDateObjectType', id: string, start?: any | null, end?: any | null } | null, learning_content?: { __typename?: 'LearningContentEdoniqTestObjectType', id?: string | null, title?: string | null, content_assignment?: { __typename?: 'AssignmentObjectType', id?: string | null, title?: string | null, assignment_type: AssignmentAssignmentAssignmentTypeChoices } | null } | null } | null> | null } | null };
+
 export type SendFeedbackMutationMutationVariables = Exact<{
   courseSessionId: Scalars['ID']['input'];
   learningContentId: Scalars['ID']['input'];
@@ -809,6 +914,7 @@ export const AttendanceCheckMutationDocument = {"kind":"Document","definitions":
 export const UpsertAssignmentCompletionDocument = {"kind":"Document","definitions":[{"kind":"OperationDefinition","operation":"mutation","name":{"kind":"Name","value":"UpsertAssignmentCompletion"},"variableDefinitions":[{"kind":"VariableDefinition","variable":{"kind":"Variable","name":{"kind":"Name","value":"assignmentId"}},"type":{"kind":"NonNullType","type":{"kind":"NamedType","name":{"kind":"Name","value":"ID"}}}},{"kind":"VariableDefinition","variable":{"kind":"Variable","name":{"kind":"Name","value":"courseSessionId"}},"type":{"kind":"NonNullType","type":{"kind":"NamedType","name":{"kind":"Name","value":"ID"}}}},{"kind":"VariableDefinition","variable":{"kind":"Variable","name":{"kind":"Name","value":"learningContentId"}},"type":{"kind":"NamedType","name":{"kind":"Name","value":"ID"}}},{"kind":"VariableDefinition","variable":{"kind":"Variable","name":{"kind":"Name","value":"assignmentUserId"}},"type":{"kind":"NamedType","name":{"kind":"Name","value":"UUID"}}},{"kind":"VariableDefinition","variable":{"kind":"Variable","name":{"kind":"Name","value":"completionStatus"}},"type":{"kind":"NonNullType","type":{"kind":"NamedType","name":{"kind":"Name","value":"AssignmentCompletionStatus"}}}},{"kind":"VariableDefinition","variable":{"kind":"Variable","name":{"kind":"Name","value":"completionDataString"}},"type":{"kind":"NonNullType","type":{"kind":"NamedType","name":{"kind":"Name","value":"String"}}}},{"kind":"VariableDefinition","variable":{"kind":"Variable","name":{"kind":"Name","value":"evaluationPoints"}},"type":{"kind":"NamedType","name":{"kind":"Name","value":"Float"}}},{"kind":"VariableDefinition","variable":{"kind":"Variable","name":{"kind":"Name","value":"initializeCompletion"}},"type":{"kind":"NamedType","name":{"kind":"Name","value":"Boolean"}}}],"selectionSet":{"kind":"SelectionSet","selections":[{"kind":"Field","name":{"kind":"Name","value":"upsert_assignment_completion"},"arguments":[{"kind":"Argument","name":{"kind":"Name","value":"assignment_id"},"value":{"kind":"Variable","name":{"kind":"Name","value":"assignmentId"}}},{"kind":"Argument","name":{"kind":"Name","value":"course_session_id"},"value":{"kind":"Variable","name":{"kind":"Name","value":"courseSessionId"}}},{"kind":"Argument","name":{"kind":"Name","value":"learning_content_page_id"},"value":{"kind":"Variable","name":{"kind":"Name","value":"learningContentId"}}},{"kind":"Argument","name":{"kind":"Name","value":"assignment_user_id"},"value":{"kind":"Variable","name":{"kind":"Name","value":"assignmentUserId"}}},{"kind":"Argument","name":{"kind":"Name","value":"completion_status"},"value":{"kind":"Variable","name":{"kind":"Name","value":"completionStatus"}}},{"kind":"Argument","name":{"kind":"Name","value":"completion_data_string"},"value":{"kind":"Variable","name":{"kind":"Name","value":"completionDataString"}}},{"kind":"Argument","name":{"kind":"Name","value":"evaluation_points"},"value":{"kind":"Variable","name":{"kind":"Name","value":"evaluationPoints"}}},{"kind":"Argument","name":{"kind":"Name","value":"initialize_completion"},"value":{"kind":"Variable","name":{"kind":"Name","value":"initializeCompletion"}}}],"selectionSet":{"kind":"SelectionSet","selections":[{"kind":"Field","name":{"kind":"Name","value":"assignment_completion"},"selectionSet":{"kind":"SelectionSet","selections":[{"kind":"Field","name":{"kind":"Name","value":"id"}},{"kind":"Field","name":{"kind":"Name","value":"completion_status"}},{"kind":"Field","name":{"kind":"Name","value":"submitted_at"}},{"kind":"Field","name":{"kind":"Name","value":"evaluation_submitted_at"}},{"kind":"Field","name":{"kind":"Name","value":"evaluation_points"}},{"kind":"Field","name":{"kind":"Name","value":"completion_data"}}]}}]}}]}}]} as unknown as DocumentNode<UpsertAssignmentCompletionMutation, UpsertAssignmentCompletionMutationVariables>;
 export const AttendanceCheckQueryDocument = {"kind":"Document","definitions":[{"kind":"OperationDefinition","operation":"query","name":{"kind":"Name","value":"attendanceCheckQuery"},"variableDefinitions":[{"kind":"VariableDefinition","variable":{"kind":"Variable","name":{"kind":"Name","value":"courseSessionId"}},"type":{"kind":"NonNullType","type":{"kind":"NamedType","name":{"kind":"Name","value":"ID"}}}}],"selectionSet":{"kind":"SelectionSet","selections":[{"kind":"Field","name":{"kind":"Name","value":"course_session_attendance_course"},"arguments":[{"kind":"Argument","name":{"kind":"Name","value":"id"},"value":{"kind":"Variable","name":{"kind":"Name","value":"courseSessionId"}}}],"selectionSet":{"kind":"SelectionSet","selections":[{"kind":"Field","name":{"kind":"Name","value":"id"}},{"kind":"Field","name":{"kind":"Name","value":"attendance_user_list"},"selectionSet":{"kind":"SelectionSet","selections":[{"kind":"Field","name":{"kind":"Name","value":"user_id"}},{"kind":"Field","name":{"kind":"Name","value":"status"}}]}}]}}]}}]} as unknown as DocumentNode<AttendanceCheckQueryQuery, AttendanceCheckQueryQueryVariables>;
 export const AssignmentCompletionQueryDocument = {"kind":"Document","definitions":[{"kind":"OperationDefinition","operation":"query","name":{"kind":"Name","value":"assignmentCompletionQuery"},"variableDefinitions":[{"kind":"VariableDefinition","variable":{"kind":"Variable","name":{"kind":"Name","value":"assignmentId"}},"type":{"kind":"NonNullType","type":{"kind":"NamedType","name":{"kind":"Name","value":"ID"}}}},{"kind":"VariableDefinition","variable":{"kind":"Variable","name":{"kind":"Name","value":"courseSessionId"}},"type":{"kind":"NonNullType","type":{"kind":"NamedType","name":{"kind":"Name","value":"ID"}}}},{"kind":"VariableDefinition","variable":{"kind":"Variable","name":{"kind":"Name","value":"learningContentId"}},"type":{"kind":"NamedType","name":{"kind":"Name","value":"ID"}}},{"kind":"VariableDefinition","variable":{"kind":"Variable","name":{"kind":"Name","value":"assignmentUserId"}},"type":{"kind":"NamedType","name":{"kind":"Name","value":"UUID"}}}],"selectionSet":{"kind":"SelectionSet","selections":[{"kind":"Field","name":{"kind":"Name","value":"assignment"},"arguments":[{"kind":"Argument","name":{"kind":"Name","value":"id"},"value":{"kind":"Variable","name":{"kind":"Name","value":"assignmentId"}}}],"selectionSet":{"kind":"SelectionSet","selections":[{"kind":"Field","name":{"kind":"Name","value":"assignment_type"}},{"kind":"Field","name":{"kind":"Name","value":"needs_expert_evaluation"}},{"kind":"Field","name":{"kind":"Name","value":"max_points"}},{"kind":"Field","name":{"kind":"Name","value":"content_type"}},{"kind":"Field","name":{"kind":"Name","value":"effort_required"}},{"kind":"Field","name":{"kind":"Name","value":"evaluation_description"}},{"kind":"Field","name":{"kind":"Name","value":"evaluation_document_url"}},{"kind":"Field","name":{"kind":"Name","value":"evaluation_tasks"}},{"kind":"Field","name":{"kind":"Name","value":"id"}},{"kind":"Field","name":{"kind":"Name","value":"intro_text"}},{"kind":"Field","name":{"kind":"Name","value":"performance_objectives"}},{"kind":"Field","name":{"kind":"Name","value":"slug"}},{"kind":"Field","name":{"kind":"Name","value":"tasks"}},{"kind":"Field","name":{"kind":"Name","value":"title"}},{"kind":"Field","name":{"kind":"Name","value":"translation_key"}},{"kind":"Field","name":{"kind":"Name","value":"competence_certificate"},"selectionSet":{"kind":"SelectionSet","selections":[{"kind":"FragmentSpread","name":{"kind":"Name","value":"CoursePageFields"}}]}}]}},{"kind":"Field","name":{"kind":"Name","value":"assignment_completion"},"arguments":[{"kind":"Argument","name":{"kind":"Name","value":"assignment_id"},"value":{"kind":"Variable","name":{"kind":"Name","value":"assignmentId"}}},{"kind":"Argument","name":{"kind":"Name","value":"course_session_id"},"value":{"kind":"Variable","name":{"kind":"Name","value":"courseSessionId"}}},{"kind":"Argument","name":{"kind":"Name","value":"assignment_user_id"},"value":{"kind":"Variable","name":{"kind":"Name","value":"assignmentUserId"}}},{"kind":"Argument","name":{"kind":"Name","value":"learning_content_page_id"},"value":{"kind":"Variable","name":{"kind":"Name","value":"learningContentId"}}}],"selectionSet":{"kind":"SelectionSet","selections":[{"kind":"Field","name":{"kind":"Name","value":"id"}},{"kind":"Field","name":{"kind":"Name","value":"completion_status"}},{"kind":"Field","name":{"kind":"Name","value":"submitted_at"}},{"kind":"Field","name":{"kind":"Name","value":"evaluation_submitted_at"}},{"kind":"Field","name":{"kind":"Name","value":"evaluation_user"},"selectionSet":{"kind":"SelectionSet","selections":[{"kind":"Field","name":{"kind":"Name","value":"id"}}]}},{"kind":"Field","name":{"kind":"Name","value":"assignment_user"},"selectionSet":{"kind":"SelectionSet","selections":[{"kind":"Field","name":{"kind":"Name","value":"id"}}]}},{"kind":"Field","name":{"kind":"Name","value":"evaluation_points"}},{"kind":"Field","name":{"kind":"Name","value":"evaluation_max_points"}},{"kind":"Field","name":{"kind":"Name","value":"evaluation_passed"}},{"kind":"Field","name":{"kind":"Name","value":"edoniq_extended_time_flag"}},{"kind":"Field","name":{"kind":"Name","value":"completion_data"}}]}}]}},{"kind":"FragmentDefinition","name":{"kind":"Name","value":"CoursePageFields"},"typeCondition":{"kind":"NamedType","name":{"kind":"Name","value":"CoursePageInterface"}},"selectionSet":{"kind":"SelectionSet","selections":[{"kind":"Field","name":{"kind":"Name","value":"title"}},{"kind":"Field","name":{"kind":"Name","value":"id"}},{"kind":"Field","name":{"kind":"Name","value":"slug"}},{"kind":"Field","name":{"kind":"Name","value":"content_type"}},{"kind":"Field","name":{"kind":"Name","value":"frontend_url"}}]}}]} as unknown as DocumentNode<AssignmentCompletionQueryQuery, AssignmentCompletionQueryQueryVariables>;
-export const CourseQueryDocument = {"kind":"Document","definitions":[{"kind":"OperationDefinition","operation":"query","name":{"kind":"Name","value":"courseQuery"},"variableDefinitions":[{"kind":"VariableDefinition","variable":{"kind":"Variable","name":{"kind":"Name","value":"courseId"}},"type":{"kind":"NonNullType","type":{"kind":"NamedType","name":{"kind":"Name","value":"Int"}}}}],"selectionSet":{"kind":"SelectionSet","selections":[{"kind":"Field","name":{"kind":"Name","value":"course"},"arguments":[{"kind":"Argument","name":{"kind":"Name","value":"id"},"value":{"kind":"Variable","name":{"kind":"Name","value":"courseId"}}}],"selectionSet":{"kind":"SelectionSet","selections":[{"kind":"Field","name":{"kind":"Name","value":"id"}},{"kind":"Field","name":{"kind":"Name","value":"slug"}},{"kind":"Field","name":{"kind":"Name","value":"title"}},{"kind":"Field","name":{"kind":"Name","value":"category_name"}},{"kind":"Field","name":{"kind":"Name","value":"learning_path"},"selectionSet":{"kind":"SelectionSet","selections":[{"kind":"Field","name":{"kind":"Name","value":"id"}}]}}]}}]}}]} as unknown as DocumentNode<CourseQueryQuery, CourseQueryQueryVariables>;
+export const CourseQueryDocument = {"kind":"Document","definitions":[{"kind":"OperationDefinition","operation":"query","name":{"kind":"Name","value":"courseQuery"},"variableDefinitions":[{"kind":"VariableDefinition","variable":{"kind":"Variable","name":{"kind":"Name","value":"courseId"}},"type":{"kind":"NonNullType","type":{"kind":"NamedType","name":{"kind":"Name","value":"ID"}}}}],"selectionSet":{"kind":"SelectionSet","selections":[{"kind":"Field","name":{"kind":"Name","value":"course"},"arguments":[{"kind":"Argument","name":{"kind":"Name","value":"id"},"value":{"kind":"Variable","name":{"kind":"Name","value":"courseId"}}}],"selectionSet":{"kind":"SelectionSet","selections":[{"kind":"Field","name":{"kind":"Name","value":"id"}},{"kind":"Field","name":{"kind":"Name","value":"slug"}},{"kind":"Field","name":{"kind":"Name","value":"title"}},{"kind":"Field","name":{"kind":"Name","value":"category_name"}},{"kind":"Field","name":{"kind":"Name","value":"learning_path"},"selectionSet":{"kind":"SelectionSet","selections":[{"kind":"Field","name":{"kind":"Name","value":"id"}}]}}]}}]}}]} as unknown as DocumentNode<CourseQueryQuery, CourseQueryQueryVariables>;
 export const CompetenceCertificateQueryDocument = {"kind":"Document","definitions":[{"kind":"OperationDefinition","operation":"query","name":{"kind":"Name","value":"competenceCertificateQuery"},"variableDefinitions":[{"kind":"VariableDefinition","variable":{"kind":"Variable","name":{"kind":"Name","value":"courseSlug"}},"type":{"kind":"NonNullType","type":{"kind":"NamedType","name":{"kind":"Name","value":"String"}}}},{"kind":"VariableDefinition","variable":{"kind":"Variable","name":{"kind":"Name","value":"courseSessionId"}},"type":{"kind":"NonNullType","type":{"kind":"NamedType","name":{"kind":"Name","value":"ID"}}}}],"selectionSet":{"kind":"SelectionSet","selections":[{"kind":"Field","name":{"kind":"Name","value":"competence_certificate_list"},"arguments":[{"kind":"Argument","name":{"kind":"Name","value":"course_slug"},"value":{"kind":"Variable","name":{"kind":"Name","value":"courseSlug"}}}],"selectionSet":{"kind":"SelectionSet","selections":[{"kind":"FragmentSpread","name":{"kind":"Name","value":"CoursePageFields"}},{"kind":"Field","name":{"kind":"Name","value":"competence_certificates"},"selectionSet":{"kind":"SelectionSet","selections":[{"kind":"FragmentSpread","name":{"kind":"Name","value":"CoursePageFields"}},{"kind":"Field","name":{"kind":"Name","value":"assignments"},"selectionSet":{"kind":"SelectionSet","selections":[{"kind":"FragmentSpread","name":{"kind":"Name","value":"CoursePageFields"}},{"kind":"Field","name":{"kind":"Name","value":"assignment_type"}},{"kind":"Field","name":{"kind":"Name","value":"max_points"}},{"kind":"Field","name":{"kind":"Name","value":"completion"},"arguments":[{"kind":"Argument","name":{"kind":"Name","value":"course_session_id"},"value":{"kind":"Variable","name":{"kind":"Name","value":"courseSessionId"}}}],"selectionSet":{"kind":"SelectionSet","selections":[{"kind":"Field","name":{"kind":"Name","value":"id"}},{"kind":"Field","name":{"kind":"Name","value":"completion_status"}},{"kind":"Field","name":{"kind":"Name","value":"submitted_at"}},{"kind":"Field","name":{"kind":"Name","value":"evaluation_points"}},{"kind":"Field","name":{"kind":"Name","value":"evaluation_max_points"}},{"kind":"Field","name":{"kind":"Name","value":"evaluation_passed"}}]}},{"kind":"Field","name":{"kind":"Name","value":"learning_content"},"selectionSet":{"kind":"SelectionSet","selections":[{"kind":"Field","name":{"kind":"Name","value":"title"}},{"kind":"Field","name":{"kind":"Name","value":"id"}},{"kind":"Field","name":{"kind":"Name","value":"slug"}},{"kind":"Field","name":{"kind":"Name","value":"content_type"}},{"kind":"Field","name":{"kind":"Name","value":"frontend_url"}},{"kind":"Field","name":{"kind":"Name","value":"circle"},"selectionSet":{"kind":"SelectionSet","selections":[{"kind":"FragmentSpread","name":{"kind":"Name","value":"CoursePageFields"}}]}}]}}]}}]}}]}}]}},{"kind":"FragmentDefinition","name":{"kind":"Name","value":"CoursePageFields"},"typeCondition":{"kind":"NamedType","name":{"kind":"Name","value":"CoursePageInterface"}},"selectionSet":{"kind":"SelectionSet","selections":[{"kind":"Field","name":{"kind":"Name","value":"title"}},{"kind":"Field","name":{"kind":"Name","value":"id"}},{"kind":"Field","name":{"kind":"Name","value":"slug"}},{"kind":"Field","name":{"kind":"Name","value":"content_type"}},{"kind":"Field","name":{"kind":"Name","value":"frontend_url"}}]}}]} as unknown as DocumentNode<CompetenceCertificateQueryQuery, CompetenceCertificateQueryQueryVariables>;
+export const CourseSessionDetailDocument = {"kind":"Document","definitions":[{"kind":"OperationDefinition","operation":"query","name":{"kind":"Name","value":"courseSessionDetail"},"variableDefinitions":[{"kind":"VariableDefinition","variable":{"kind":"Variable","name":{"kind":"Name","value":"courseSessionId"}},"type":{"kind":"NonNullType","type":{"kind":"NamedType","name":{"kind":"Name","value":"ID"}}}}],"selectionSet":{"kind":"SelectionSet","selections":[{"kind":"Field","name":{"kind":"Name","value":"course_session"},"arguments":[{"kind":"Argument","name":{"kind":"Name","value":"id"},"value":{"kind":"Variable","name":{"kind":"Name","value":"courseSessionId"}}}],"selectionSet":{"kind":"SelectionSet","selections":[{"kind":"Field","name":{"kind":"Name","value":"id"}},{"kind":"Field","name":{"kind":"Name","value":"title"}},{"kind":"Field","name":{"kind":"Name","value":"course"},"selectionSet":{"kind":"SelectionSet","selections":[{"kind":"Field","name":{"kind":"Name","value":"id"}},{"kind":"Field","name":{"kind":"Name","value":"title"}},{"kind":"Field","name":{"kind":"Name","value":"slug"}}]}},{"kind":"Field","name":{"kind":"Name","value":"users"},"selectionSet":{"kind":"SelectionSet","selections":[{"kind":"Field","name":{"kind":"Name","value":"id"}},{"kind":"Field","name":{"kind":"Name","value":"user_id"}},{"kind":"Field","name":{"kind":"Name","value":"first_name"}},{"kind":"Field","name":{"kind":"Name","value":"last_name"}},{"kind":"Field","name":{"kind":"Name","value":"email"}},{"kind":"Field","name":{"kind":"Name","value":"avatar_url"}},{"kind":"Field","name":{"kind":"Name","value":"role"}},{"kind":"Field","name":{"kind":"Name","value":"circles"},"selectionSet":{"kind":"SelectionSet","selections":[{"kind":"Field","name":{"kind":"Name","value":"id"}},{"kind":"Field","name":{"kind":"Name","value":"title"}},{"kind":"Field","name":{"kind":"Name","value":"slug"}}]}}]}},{"kind":"Field","name":{"kind":"Name","value":"attendance_courses"},"selectionSet":{"kind":"SelectionSet","selections":[{"kind":"Field","name":{"kind":"Name","value":"id"}},{"kind":"Field","name":{"kind":"Name","value":"location"}},{"kind":"Field","name":{"kind":"Name","value":"trainer"}},{"kind":"Field","name":{"kind":"Name","value":"due_date"},"selectionSet":{"kind":"SelectionSet","selections":[{"kind":"Field","name":{"kind":"Name","value":"id"}},{"kind":"Field","name":{"kind":"Name","value":"start"}},{"kind":"Field","name":{"kind":"Name","value":"end"}}]}},{"kind":"Field","name":{"kind":"Name","value":"learning_content_id"}},{"kind":"Field","name":{"kind":"Name","value":"learning_content"},"selectionSet":{"kind":"SelectionSet","selections":[{"kind":"Field","name":{"kind":"Name","value":"id"}},{"kind":"Field","name":{"kind":"Name","value":"title"}},{"kind":"Field","name":{"kind":"Name","value":"circle"},"selectionSet":{"kind":"SelectionSet","selections":[{"kind":"Field","name":{"kind":"Name","value":"id"}},{"kind":"Field","name":{"kind":"Name","value":"title"}},{"kind":"Field","name":{"kind":"Name","value":"slug"}}]}}]}}]}},{"kind":"Field","name":{"kind":"Name","value":"assignments"},"selectionSet":{"kind":"SelectionSet","selections":[{"kind":"Field","name":{"kind":"Name","value":"id"}},{"kind":"Field","name":{"kind":"Name","value":"submission_deadline"},"selectionSet":{"kind":"SelectionSet","selections":[{"kind":"Field","name":{"kind":"Name","value":"id"}},{"kind":"Field","name":{"kind":"Name","value":"start"}}]}},{"kind":"Field","name":{"kind":"Name","value":"evaluation_deadline"},"selectionSet":{"kind":"SelectionSet","selections":[{"kind":"Field","name":{"kind":"Name","value":"id"}},{"kind":"Field","name":{"kind":"Name","value":"start"}}]}},{"kind":"Field","name":{"kind":"Name","value":"learning_content"},"selectionSet":{"kind":"SelectionSet","selections":[{"kind":"Field","name":{"kind":"Name","value":"id"}},{"kind":"Field","name":{"kind":"Name","value":"title"}},{"kind":"Field","name":{"kind":"Name","value":"content_assignment"},"selectionSet":{"kind":"SelectionSet","selections":[{"kind":"Field","name":{"kind":"Name","value":"id"}},{"kind":"Field","name":{"kind":"Name","value":"title"}},{"kind":"Field","name":{"kind":"Name","value":"assignment_type"}}]}}]}}]}},{"kind":"Field","name":{"kind":"Name","value":"edoniq_tests"},"selectionSet":{"kind":"SelectionSet","selections":[{"kind":"Field","name":{"kind":"Name","value":"id"}},{"kind":"Field","name":{"kind":"Name","value":"deadline"},"selectionSet":{"kind":"SelectionSet","selections":[{"kind":"Field","name":{"kind":"Name","value":"id"}},{"kind":"Field","name":{"kind":"Name","value":"start"}},{"kind":"Field","name":{"kind":"Name","value":"end"}}]}},{"kind":"Field","name":{"kind":"Name","value":"learning_content"},"selectionSet":{"kind":"SelectionSet","selections":[{"kind":"Field","name":{"kind":"Name","value":"id"}},{"kind":"Field","name":{"kind":"Name","value":"title"}},{"kind":"Field","name":{"kind":"Name","value":"content_assignment"},"selectionSet":{"kind":"SelectionSet","selections":[{"kind":"Field","name":{"kind":"Name","value":"id"}},{"kind":"Field","name":{"kind":"Name","value":"title"}},{"kind":"Field","name":{"kind":"Name","value":"assignment_type"}}]}}]}}]}}]}}]}}]} as unknown as DocumentNode<CourseSessionDetailQuery, CourseSessionDetailQueryVariables>;
 export const SendFeedbackMutationDocument = {"kind":"Document","definitions":[{"kind":"OperationDefinition","operation":"mutation","name":{"kind":"Name","value":"SendFeedbackMutation"},"variableDefinitions":[{"kind":"VariableDefinition","variable":{"kind":"Variable","name":{"kind":"Name","value":"courseSessionId"}},"type":{"kind":"NonNullType","type":{"kind":"NamedType","name":{"kind":"Name","value":"ID"}}}},{"kind":"VariableDefinition","variable":{"kind":"Variable","name":{"kind":"Name","value":"learningContentId"}},"type":{"kind":"NonNullType","type":{"kind":"NamedType","name":{"kind":"Name","value":"ID"}}}},{"kind":"VariableDefinition","variable":{"kind":"Variable","name":{"kind":"Name","value":"data"}},"type":{"kind":"NonNullType","type":{"kind":"NamedType","name":{"kind":"Name","value":"GenericScalar"}}}},{"kind":"VariableDefinition","variable":{"kind":"Variable","name":{"kind":"Name","value":"submitted"}},"type":{"kind":"NamedType","name":{"kind":"Name","value":"Boolean"}}}],"selectionSet":{"kind":"SelectionSet","selections":[{"kind":"Field","name":{"kind":"Name","value":"send_feedback"},"arguments":[{"kind":"Argument","name":{"kind":"Name","value":"course_session_id"},"value":{"kind":"Variable","name":{"kind":"Name","value":"courseSessionId"}}},{"kind":"Argument","name":{"kind":"Name","value":"learning_content_page_id"},"value":{"kind":"Variable","name":{"kind":"Name","value":"learningContentId"}}},{"kind":"Argument","name":{"kind":"Name","value":"data"},"value":{"kind":"Variable","name":{"kind":"Name","value":"data"}}},{"kind":"Argument","name":{"kind":"Name","value":"submitted"},"value":{"kind":"Variable","name":{"kind":"Name","value":"submitted"}}}],"selectionSet":{"kind":"SelectionSet","selections":[{"kind":"Field","name":{"kind":"Name","value":"feedback_response"},"selectionSet":{"kind":"SelectionSet","selections":[{"kind":"Field","name":{"kind":"Name","value":"id"}},{"kind":"Field","name":{"kind":"Name","value":"data"}},{"kind":"Field","name":{"kind":"Name","value":"submitted"}}]}},{"kind":"Field","name":{"kind":"Name","value":"errors"},"selectionSet":{"kind":"SelectionSet","selections":[{"kind":"Field","name":{"kind":"Name","value":"field"}},{"kind":"Field","name":{"kind":"Name","value":"messages"}}]}}]}}]}}]} as unknown as DocumentNode<SendFeedbackMutationMutation, SendFeedbackMutationMutationVariables>;
\ No newline at end of file
diff --git a/client/src/gql/schema.graphql b/client/src/gql/schema.graphql
index a36eb1e9..87b8817d 100644
--- a/client/src/gql/schema.graphql
+++ b/client/src/gql/schema.graphql
@@ -8,11 +8,12 @@ type Query {
   learning_content_learning_module: LearningContentLearningModuleObjectType
   learning_content_placeholder: LearningContentPlaceholderObjectType
   learning_content_rich_text: LearningContentRichTextObjectType
-  learning_content_test: LearningContentTestObjectType
+  learning_content_test: LearningContentEdoniqTestObjectType
   learning_content_video: LearningContentVideoObjectType
   learning_content_document_list: LearningContentDocumentListObjectType
-  course_session_attendance_course(id: ID!, assignment_user_id: ID): CourseSessionAttendanceCourseType
-  course(id: Int): CourseObjectType
+  course_session_attendance_course(id: ID!, assignment_user_id: ID): CourseSessionAttendanceCourseObjectType
+  course(id: ID): CourseObjectType
+  course_session(id: ID): CourseSessionObjectType
   competence_certificate(id: ID, slug: String): CompetenceCertificateObjectType
   competence_certificate_list(id: ID, slug: String, course_id: ID, course_slug: String): CompetenceCertificateListObjectType
   assignment(id: ID, slug: String): AssignmentObjectType
@@ -307,12 +308,167 @@ type AssignmentCompletionObjectType {
   edoniq_extended_time_flag: Boolean!
   assignment_user: UserType!
   assignment: AssignmentObjectType!
+  course_session: CourseSessionObjectType!
   completion_status: AssignmentAssignmentCompletionCompletionStatusChoices!
   completion_data: GenericScalar
   additional_json_data: JSONString!
   learning_content_page_id: ID
 }
 
+type CourseSessionObjectType {
+  id: ID!
+  created_at: DateTime!
+  updated_at: DateTime!
+  course: CourseObjectType!
+  title: String!
+  start_date: Date
+  end_date: Date
+  attendance_courses: [CourseSessionAttendanceCourseObjectType]
+  assignments: [CourseSessionAssignmentObjectType]
+  edoniq_tests: [CourseSessionEdoniqTestObjectType]
+  documents: [CircleDocumentObjectType]
+  users: [CourseSessionUserObjectsType]
+}
+
+"""
+The `Date` scalar type represents a Date
+value as specified by
+[iso8601](https://en.wikipedia.org/wiki/ISO_8601).
+"""
+scalar Date
+
+type CourseSessionAttendanceCourseObjectType {
+  id: ID!
+  learning_content: LearningContentAttendanceCourseObjectType
+  due_date: DueDateObjectType
+  location: String!
+  trainer: String!
+  course_session_id: ID
+  learning_content_id: ID
+  attendance_user_list: [AttendanceUserObjectType]
+}
+
+type LearningContentAttendanceCourseObjectType implements LearningContentInterface {
+  id: ID
+  title: String
+  slug: String
+  content_type: String
+  live: Boolean
+  translation_key: String
+  frontend_url: String
+  circle: CircleObjectType
+  course: CourseObjectType
+  minutes: Int
+  description: String
+  content: String
+}
+
+type DueDateObjectType {
+  id: ID!
+
+  """Startdatum ist Pflicht"""
+  start: DateTime
+
+  """Enddatum ist optional"""
+  end: DateTime
+
+  """Nur aktivieren, wenn man die Felder manuell überschreiben will"""
+  manual_override_fields: Boolean!
+
+  """Title wird standarmässig vom LearningContent übernommen"""
+  title: String!
+
+  """Translation Key aus dem Frontend"""
+  assignment_type_translation_key: String!
+
+  """Translation Key aus dem Frontend"""
+  date_type_translation_key: String!
+
+  """
+  Überschreibt den Untertitel bei `assignment_type_translation_key` und `date_type_translation_key`
+  """
+  subtitle: String!
+
+  """
+  URL wird vom LearningContent übernommen (sichtbar für Member/Teilnehmer)
+  """
+  url: String!
+  course_session: CourseSessionObjectType!
+}
+
+type AttendanceUserObjectType {
+  user_id: UUID!
+  status: AttendanceUserStatus!
+  first_name: String
+  last_name: String
+  email: String
+}
+
+"""An enumeration."""
+enum AttendanceUserStatus {
+  PRESENT
+  ABSENT
+}
+
+type CourseSessionAssignmentObjectType {
+  id: ID!
+  learning_content: LearningContentAssignmentObjectType
+  submission_deadline: DueDateObjectType
+  evaluation_deadline: DueDateObjectType
+  course_session_id: ID
+  learning_content_id: ID
+}
+
+type CourseSessionEdoniqTestObjectType {
+  id: ID!
+  learning_content: LearningContentEdoniqTestObjectType
+  deadline: DueDateObjectType
+  course_session_id: ID
+  learning_content_id: ID
+}
+
+type LearningContentEdoniqTestObjectType implements LearningContentInterface {
+  content_assignment: AssignmentObjectType
+  id: ID
+  title: String
+  slug: String
+  content_type: String
+  live: Boolean
+  translation_key: String
+  frontend_url: String
+  circle: CircleObjectType
+  course: CourseObjectType
+  minutes: Int
+  description: String
+  content: String
+}
+
+type CircleDocumentObjectType {
+  id: UUID!
+  name: String!
+  course_session: CourseSessionObjectType!
+  learning_sequence: LearningSequenceObjectType!
+  file_name: String
+  url: String
+}
+
+type CourseSessionUserObjectsType {
+  id: UUID!
+  role: String
+  user_id: UUID
+  first_name: String
+  last_name: String
+  email: String
+  avatar_url: String
+  circles: [CourseSessionUserExpertCircleType]
+}
+
+type CourseSessionUserExpertCircleType {
+  id: ID
+  title: String
+  slug: String
+}
+
 """An enumeration."""
 enum AssignmentAssignmentCompletionCompletionStatusChoices {
   """IN_PROGRESS"""
@@ -361,21 +517,6 @@ enum LearnpathLearningContentAssignmentAssignmentTypeChoices {
   EDONIQ_TEST
 }
 
-type LearningContentAttendanceCourseObjectType implements LearningContentInterface {
-  id: ID
-  title: String
-  slug: String
-  content_type: String
-  live: Boolean
-  translation_key: String
-  frontend_url: String
-  circle: CircleObjectType
-  course: CourseObjectType
-  minutes: Int
-  description: String
-  content: String
-}
-
 type LearningContentFeedbackObjectType implements LearningContentInterface {
   id: ID
   title: String
@@ -436,22 +577,6 @@ type LearningContentRichTextObjectType implements LearningContentInterface {
   content: String
 }
 
-type LearningContentTestObjectType implements LearningContentInterface {
-  content_assignment: AssignmentObjectType
-  id: ID
-  title: String
-  slug: String
-  content_type: String
-  live: Boolean
-  translation_key: String
-  frontend_url: String
-  circle: CircleObjectType
-  course: CourseObjectType
-  minutes: Int
-  description: String
-  content: String
-}
-
 type LearningContentVideoObjectType implements LearningContentInterface {
   id: ID
   title: String
@@ -482,32 +607,6 @@ type LearningContentDocumentListObjectType implements LearningContentInterface {
   content: String
 }
 
-type CourseSessionAttendanceCourseType {
-  id: ID!
-  location: String!
-  trainer: String!
-  course_session_id: ID
-  learning_content_id: ID
-  due_date_id: ID
-  end: DateTime
-  start: DateTime
-  attendance_user_list: [AttendanceUserType]
-}
-
-type AttendanceUserType {
-  user_id: UUID!
-  status: AttendanceUserStatus!
-  first_name: String
-  last_name: String
-  email: String
-}
-
-"""An enumeration."""
-enum AttendanceUserStatus {
-  PRESENT
-  ABSENT
-}
-
 type CompetenceCertificateListObjectType implements CoursePageInterface {
   id: ID
   path: String!
@@ -577,7 +676,7 @@ type ErrorType {
 }
 
 type AttendanceCourseUserMutation {
-  course_session_attendance_course: CourseSessionAttendanceCourseType
+  course_session_attendance_course: CourseSessionAttendanceCourseObjectType
 }
 
 input AttendanceUserInputType {
diff --git a/client/src/gql/typenames.ts b/client/src/gql/typenames.ts
index 66b3076f..f48d2629 100644
--- a/client/src/gql/typenames.ts
+++ b/client/src/gql/typenames.ts
@@ -6,17 +6,25 @@ export const AssignmentCompletionStatus = "AssignmentCompletionStatus";
 export const AssignmentObjectType = "AssignmentObjectType";
 export const AttendanceCourseUserMutation = "AttendanceCourseUserMutation";
 export const AttendanceUserInputType = "AttendanceUserInputType";
+export const AttendanceUserObjectType = "AttendanceUserObjectType";
 export const AttendanceUserStatus = "AttendanceUserStatus";
-export const AttendanceUserType = "AttendanceUserType";
 export const Boolean = "Boolean";
+export const CircleDocumentObjectType = "CircleDocumentObjectType";
 export const CircleObjectType = "CircleObjectType";
 export const CompetenceCertificateListObjectType = "CompetenceCertificateListObjectType";
 export const CompetenceCertificateObjectType = "CompetenceCertificateObjectType";
 export const CoreUserLanguageChoices = "CoreUserLanguageChoices";
 export const CourseObjectType = "CourseObjectType";
 export const CoursePageInterface = "CoursePageInterface";
-export const CourseSessionAttendanceCourseType = "CourseSessionAttendanceCourseType";
+export const CourseSessionAssignmentObjectType = "CourseSessionAssignmentObjectType";
+export const CourseSessionAttendanceCourseObjectType = "CourseSessionAttendanceCourseObjectType";
+export const CourseSessionEdoniqTestObjectType = "CourseSessionEdoniqTestObjectType";
+export const CourseSessionObjectType = "CourseSessionObjectType";
+export const CourseSessionUserExpertCircleType = "CourseSessionUserExpertCircleType";
+export const CourseSessionUserObjectsType = "CourseSessionUserObjectsType";
+export const Date = "Date";
 export const DateTime = "DateTime";
+export const DueDateObjectType = "DueDateObjectType";
 export const ErrorType = "ErrorType";
 export const FeedbackResponseObjectType = "FeedbackResponseObjectType";
 export const Float = "Float";
@@ -28,13 +36,13 @@ export const JSONString = "JSONString";
 export const LearningContentAssignmentObjectType = "LearningContentAssignmentObjectType";
 export const LearningContentAttendanceCourseObjectType = "LearningContentAttendanceCourseObjectType";
 export const LearningContentDocumentListObjectType = "LearningContentDocumentListObjectType";
+export const LearningContentEdoniqTestObjectType = "LearningContentEdoniqTestObjectType";
 export const LearningContentFeedbackObjectType = "LearningContentFeedbackObjectType";
 export const LearningContentInterface = "LearningContentInterface";
 export const LearningContentLearningModuleObjectType = "LearningContentLearningModuleObjectType";
 export const LearningContentMediaLibraryObjectType = "LearningContentMediaLibraryObjectType";
 export const LearningContentPlaceholderObjectType = "LearningContentPlaceholderObjectType";
 export const LearningContentRichTextObjectType = "LearningContentRichTextObjectType";
-export const LearningContentTestObjectType = "LearningContentTestObjectType";
 export const LearningContentVideoObjectType = "LearningContentVideoObjectType";
 export const LearningPathObjectType = "LearningPathObjectType";
 export const LearningSequenceObjectType = "LearningSequenceObjectType";
diff --git a/client/src/graphql/client.ts b/client/src/graphql/client.ts
index 926e0052..67c2f5fb 100644
--- a/client/src/graphql/client.ts
+++ b/client/src/graphql/client.ts
@@ -14,7 +14,7 @@ export const graphqlClient = new Client({
     cacheExchange({
       schema: schema,
       keys: {
-        AttendanceUserType: (data) => data?.user_id?.toString() ?? null,
+        AttendanceUserObjectType: (data) => data?.user_id?.toString() ?? null,
       },
       updates: {
         Mutation: {
diff --git a/client/src/graphql/queries.ts b/client/src/graphql/queries.ts
index f9c420ce..68268a6d 100644
--- a/client/src/graphql/queries.ts
+++ b/client/src/graphql/queries.ts
@@ -76,7 +76,7 @@ export const ASSIGNMENT_COMPLETION_QUERY = graphql(`
 `);
 
 export const COURSE_QUERY = graphql(`
-  query courseQuery($courseId: Int!) {
+  query courseQuery($courseId: ID!) {
     course(id: $courseId) {
       id
       slug
@@ -122,3 +122,88 @@ export const COMPETENCE_NAVI_CERTIFICATE_QUERY = graphql(`
     }
   }
 `);
+
+export const COURSE_SESSION_DETAIL_QUERY = graphql(`
+  query courseSessionDetail($courseSessionId: ID!) {
+    course_session(id: $courseSessionId) {
+      id
+      title
+      course {
+        id
+        title
+        slug
+      }
+      users {
+        id
+        user_id
+        first_name
+        last_name
+        email
+        avatar_url
+        role
+        circles {
+          id
+          title
+          slug
+        }
+      }
+      attendance_courses {
+        id
+        location
+        trainer
+        due_date {
+          id
+          start
+          end
+        }
+        learning_content_id
+        learning_content {
+          id
+          title
+          circle {
+            id
+            title
+            slug
+          }
+        }
+      }
+      assignments {
+        id
+        submission_deadline {
+          id
+          start
+        }
+        evaluation_deadline {
+          id
+          start
+        }
+        learning_content {
+          id
+          title
+          content_assignment {
+            id
+            title
+            assignment_type
+          }
+        }
+      }
+      edoniq_tests {
+        id
+        deadline {
+          id
+          start
+          end
+        }
+        learning_content {
+          id
+          title
+          content_assignment {
+            id
+            title
+            assignment_type
+          }
+        }
+      }
+    }
+  }
+`);
diff --git a/client/src/pages/AppointmentsPage.vue b/client/src/pages/AppointmentsPage.vue
index a5496775..6d82d0ac 100644
--- a/client/src/pages/AppointmentsPage.vue
+++ b/client/src/pages/AppointmentsPage.vue
@@ -9,12 +9,12 @@ import DueDatesList from "@/components/dueDates/DueDatesList.vue";
 
 const { t } = useTranslation();
 
-const UNFILTERED = Number.MAX_SAFE_INTEGER;
+const UNFILTERED = Number.MAX_SAFE_INTEGER.toString();
 const courseSessionsStore = useCourseSessionsStore();
 const learningPathStore = useLearningPathStore();
 
 type Item = {
-  id: number;
+  id: string;
   name: string;
 };
 
@@ -101,14 +101,14 @@ const appointments = computed(() => {
 
 const isMatchingSession = (dueDate: DueDate) =>
   selectedSession.value.id === UNFILTERED ||
-  dueDate.course_session === selectedSession.value.id;
+  dueDate.course_session_id === selectedSession.value.id;
 
 const isMatchingCircle = (dueDate: DueDate) =>
   selectedCircle.value.id === UNFILTERED ||
   dueDate.circle?.id === selectedCircle.value.id;
 
 const isMatchingCourse = (dueDate: DueDate) =>
-  courseSessions.value.map((cs) => cs.id).includes(dueDate.course_session as number);
+  courseSessions.value.map((cs) => cs.id).includes(dueDate.course_session_id);
 
 const numAppointmentsToShow = ref(7);
 const canLoadMore = computed(() => {
diff --git a/client/src/pages/DashboardPage.vue b/client/src/pages/DashboardPage.vue
index f543f45a..535246bc 100644
--- a/client/src/pages/DashboardPage.vue
+++ b/client/src/pages/DashboardPage.vue
@@ -6,6 +6,7 @@ import { useUserStore } from "@/stores/user";
 import type { CourseSession } from "@/types";
 import log from "loglevel";
 import { computed, onMounted } from "vue";
+import { getCockpitUrl, getLearningPathUrl } from "@/utils/utils";
 
 log.debug("DashboardPage created");
 
@@ -20,9 +21,9 @@ const allDueDates = courseSessionsStore.allDueDates();
 const getNextStepLink = (courseSession: CourseSession) => {
   return computed(() => {
     if (courseSessionsStore.hasCockpit(courseSession)) {
-      return courseSession.cockpit_url;
+      return getCockpitUrl(courseSession.course.slug);
     }
-    return courseSession.learning_path_url;
+    return getLearningPathUrl(courseSession.course.slug);
   });
 };
 </script>
diff --git a/client/src/pages/cockpit/CockpitParentPage.vue b/client/src/pages/cockpit/CockpitParentPage.vue
index a0f1663a..78d6ce59 100644
--- a/client/src/pages/cockpit/CockpitParentPage.vue
+++ b/client/src/pages/cockpit/CockpitParentPage.vue
@@ -1,5 +1,5 @@
 <script setup lang="ts">
-import { useCurrentCourseSession } from "@/composables";
+import { useCourseSessionDetailQuery } from "@/composables";
 import { useCockpitStore } from "@/stores/cockpit";
 import { useCompetenceStore } from "@/stores/competence";
 import { useLearningPathStore } from "@/stores/learningPath";
@@ -16,13 +16,15 @@ const props = defineProps<{
 const cockpitStore = useCockpitStore();
 const competenceStore = useCompetenceStore();
 const learningPathStore = useLearningPathStore();
-const courseSession = useCurrentCourseSession();
+
+const courseSessionDetailResult = useCourseSessionDetailQuery();
 
 onMounted(async () => {
   log.debug("CockpitParentPage mounted", props.courseSlug);
 
   try {
-    const members = await cockpitStore.loadCourseSessionMembers(courseSession.value.id);
+    await courseSessionDetailResult.waitForData();
+    const members = courseSessionDetailResult.filterMembers();
     members.forEach((csu) => {
       competenceStore.loadCompetenceProfilePage(
         props.courseSlug + "-competencenavi-competences",
@@ -35,7 +37,10 @@ onMounted(async () => {
       props.courseSlug + "-lp",
       useUserStore().id
     );
-    await cockpitStore.loadCircles(props.courseSlug, courseSession.value.id);
+    await cockpitStore.loadCircles(
+      props.courseSlug,
+      courseSessionDetailResult.findCurrentUser()
+    );
   } catch (error) {
     log.error(error);
   }
diff --git a/client/src/pages/cockpit/CockpitUserCirclePage.vue b/client/src/pages/cockpit/CockpitUserCirclePage.vue
index 12d66b67..e7d2889f 100644
--- a/client/src/pages/cockpit/CockpitUserCirclePage.vue
+++ b/client/src/pages/cockpit/CockpitUserCirclePage.vue
@@ -1,8 +1,8 @@
 <script setup lang="ts">
 import CirclePage from "@/pages/learningPath/circlePage/CirclePage.vue";
-import { useCockpitStore } from "@/stores/cockpit";
 import * as log from "loglevel";
 import { computed, onMounted } from "vue";
+import { useCourseSessionDetailQuery } from "@/composables";
 
 const props = defineProps<{
   userId: string;
@@ -12,14 +12,14 @@ const props = defineProps<{
 
 log.debug("CockpitUserCirclePage created", props.userId, props.circleSlug);
 
-const cockpitStore = useCockpitStore();
-
 onMounted(async () => {
   log.debug("CockpitUserCirclePage mounted");
 });
 
+const { findUser } = useCourseSessionDetailQuery();
+
 const user = computed(() => {
-  return cockpitStore.courseSessionMembers?.find((csu) => csu.user_id === props.userId);
+  return findUser(props.userId);
 });
 </script>
 
diff --git a/client/src/pages/cockpit/CockpitUserProfilePage.vue b/client/src/pages/cockpit/CockpitUserProfilePage.vue
index d78609a6..ff19ab89 100644
--- a/client/src/pages/cockpit/CockpitUserProfilePage.vue
+++ b/client/src/pages/cockpit/CockpitUserProfilePage.vue
@@ -1,5 +1,4 @@
 <script setup lang="ts">
-import { useCockpitStore } from "@/stores/cockpit";
 import { useCompetenceStore } from "@/stores/competence";
 import { useLearningPathStore } from "@/stores/learningPath";
 import * as log from "loglevel";
@@ -7,6 +6,7 @@ import { computed, onMounted } from "vue";
 
 import CompetenceDetail from "@/pages/competence/ActionCompetenceDetail.vue";
 import LearningPathPathView from "@/pages/learningPath/learningPathPage/LearningPathPathView.vue";
+import { useCourseSessionDetailQuery } from "@/composables";
 
 const props = defineProps<{
   userId: string;
@@ -15,7 +15,6 @@ const props = defineProps<{
 
 log.debug("CockpitUserProfilePage created", props.userId);
 
-const cockpitStore = useCockpitStore();
 const competenceStore = useCompetenceStore();
 const learningPathStore = useLearningPathStore();
 
@@ -27,8 +26,10 @@ const learningPath = computed(() => {
   return learningPathStore.learningPathForUser(props.courseSlug, props.userId);
 });
 
+const { findUser } = useCourseSessionDetailQuery();
+
 const user = computed(() => {
-  return cockpitStore.courseSessionMembers?.find((csu) => csu.user_id === props.userId);
+  return findUser(props.userId);
 });
 
 function setActiveClasses(isActive: boolean) {
diff --git a/client/src/pages/cockpit/assignmentEvaluationPage/AssignmentEvaluationPage.vue b/client/src/pages/cockpit/assignmentEvaluationPage/AssignmentEvaluationPage.vue
index 24422f6f..fd42b7c8 100644
--- a/client/src/pages/cockpit/assignmentEvaluationPage/AssignmentEvaluationPage.vue
+++ b/client/src/pages/cockpit/assignmentEvaluationPage/AssignmentEvaluationPage.vue
@@ -1,20 +1,15 @@
 <script setup lang="ts">
-import { useCurrentCourseSession } from "@/composables";
+import { useCourseSessionDetailQuery, useCurrentCourseSession } from "@/composables";
 import { ASSIGNMENT_COMPLETION_QUERY } from "@/graphql/queries";
 import EvaluationContainer from "@/pages/cockpit/assignmentEvaluationPage/EvaluationContainer.vue";
 import AssignmentSubmissionResponses from "@/pages/learningPath/learningContentPage/assignment/AssignmentSubmissionResponses.vue";
-import type {
-  Assignment,
-  AssignmentCompletion,
-  CourseSessionAssignment,
-  CourseSessionUser,
-} from "@/types";
+import type { Assignment, AssignmentCompletion } from "@/types";
 import { useQuery } from "@urql/vue";
 import log from "loglevel";
-import { computed, onMounted, reactive } from "vue";
+import { computed, onMounted } from "vue";
 import { useRouter } from "vue-router";
 import { getPreviousRoute } from "@/router/history";
-import { getAssignmentTypeTitle } from "@/utils/utils";
+import { getAssignmentTypeTitle } from "../../../utils/utils";
 
 const props = defineProps<{
   courseSlug: string;
@@ -24,16 +19,6 @@ const props = defineProps<{
 
 log.debug("AssignmentEvaluationPage created", props.assignmentId, props.userId);
 
-interface StateInterface {
-  courseSessionAssignment: CourseSessionAssignment | undefined;
-  assignmentUser: CourseSessionUser | undefined;
-}
-
-const state: StateInterface = reactive({
-  courseSessionAssignment: undefined,
-  assignmentUser: undefined,
-});
-
 const courseSession = useCurrentCourseSession();
 const router = useRouter();
 
@@ -41,7 +26,7 @@ const router = useRouter();
 const queryResult = useQuery({
   query: ASSIGNMENT_COMPLETION_QUERY,
   variables: {
-    courseSessionId: courseSession.value.id.toString(),
+    courseSessionId: courseSession.value.id,
     assignmentId: props.assignmentId,
     assignmentUserId: props.userId,
   },
@@ -49,12 +34,11 @@ const queryResult = useQuery({
 
 onMounted(async () => {
   log.debug("AssignmentView mounted", props.assignmentId, props.userId);
-
-  state.assignmentUser = courseSession.value.users.find(
-    (user) => user.user_id === props.userId
-  );
 });
 
+const courseSessionDetailResult = useCourseSessionDetailQuery();
+const assignmentUser = computed(() => courseSessionDetailResult.findUser(props.userId));
+
 const previousRoute = getPreviousRoute();
 
 function close() {
@@ -103,10 +87,7 @@ const assignment = computed(
           <it-icon-close></it-icon-close>
         </button>
       </header>
-      <div
-        v-if="assignment && assignmentCompletion && state.assignmentUser"
-        class="relative"
-      >
+      <div v-if="assignment && assignmentCompletion && assignmentUser" class="relative">
         <div class="md:h-content flex flex-col md:flex-row">
           <div
             class="bg-white md:h-full md:overflow-y-auto"
@@ -118,12 +99,12 @@ const assignment = computed(
 
               <div class="my-6 flex items-center">
                 <img
-                  :src="state.assignmentUser?.avatar_url"
+                  :src="assignmentUser?.avatar_url"
                   class="mr-4 h-11 w-11 rounded-full"
                 />
                 <div class="font-bold">
-                  {{ state.assignmentUser?.first_name }}
-                  {{ state.assignmentUser?.last_name }}
+                  {{ assignmentUser?.first_name }}
+                  {{ assignmentUser?.last_name }}
                 </div>
               </div>
               <AssignmentSubmissionResponses
@@ -139,7 +120,7 @@ const assignment = computed(
           >
             <EvaluationContainer
               :assignment-completion="assignmentCompletion"
-              :assignment-user="state.assignmentUser"
+              :assignment-user="assignmentUser"
               :assignment="assignment"
               @close="close()"
             ></EvaluationContainer>
diff --git a/client/src/pages/cockpit/assignmentEvaluationPage/EvaluationContainer.vue b/client/src/pages/cockpit/assignmentEvaluationPage/EvaluationContainer.vue
index 916fb7a9..ed2b47a8 100644
--- a/client/src/pages/cockpit/assignmentEvaluationPage/EvaluationContainer.vue
+++ b/client/src/pages/cockpit/assignmentEvaluationPage/EvaluationContainer.vue
@@ -2,7 +2,6 @@
 import EvaluationIntro from "@/pages/cockpit/assignmentEvaluationPage/EvaluationIntro.vue";
 import EvaluationSummary from "@/pages/cockpit/assignmentEvaluationPage/EvaluationSummary.vue";
 import EvaluationTask from "@/pages/cockpit/assignmentEvaluationPage/EvaluationTask.vue";
-import { findAssignmentDetail } from "@/services/assignmentService";
 import type {
   Assignment,
   AssignmentCompletion,
@@ -14,6 +13,7 @@ import dayjs from "dayjs";
 import { findIndex } from "lodash";
 import * as log from "loglevel";
 import { computed, onMounted } from "vue";
+import { useCourseSessionDetailQuery } from "@/composables";
 
 const props = defineProps<{
   assignmentUser: CourseSessionUser;
@@ -58,10 +58,14 @@ function editTask(task: AssignmentEvaluationTask) {
   stepIndex.value = taskIndex + 1;
 }
 
-const assignmentDetail = computed(() => findAssignmentDetail(props.assignment.id));
+const courseSessionDetailResult = useCourseSessionDetailQuery();
+
+const assignmentDetail = computed(() => {
+  return courseSessionDetailResult.findAssignmentByAssignmentId(props.assignment.id);
+});
 
 const dueDate = computed(() =>
-  dayjs(assignmentDetail.value?.evaluation_deadline_start)
+  dayjs(assignmentDetail.value?.evaluation_deadline.start)
 );
 
 const inEvaluationTask = computed(
diff --git a/client/src/pages/cockpit/assignmentEvaluationPage/EvaluationIntro.vue b/client/src/pages/cockpit/assignmentEvaluationPage/EvaluationIntro.vue
index 19186c0a..89a174cf 100644
--- a/client/src/pages/cockpit/assignmentEvaluationPage/EvaluationIntro.vue
+++ b/client/src/pages/cockpit/assignmentEvaluationPage/EvaluationIntro.vue
@@ -27,9 +27,9 @@ async function startEvaluation() {
   log.debug("startEvaluation");
   if (props.assignmentCompletion.completion_status !== "EVALUATION_SUBMITTED") {
     upsertAssignmentCompletionMutation.executeMutation({
-      assignmentId: props.assignment.id.toString(),
-      courseSessionId: courseSession.value.id.toString(),
-      assignmentUserId: props.assignmentUser.user_id.toString(),
+      assignmentId: props.assignment.id,
+      courseSessionId: courseSession.value.id,
+      assignmentUserId: props.assignmentUser.user_id,
       completionStatus: "EVALUATION_IN_PROGRESS",
       completionDataString: JSON.stringify({}),
       // next line used for urql
diff --git a/client/src/pages/cockpit/assignmentEvaluationPage/EvaluationSummary.vue b/client/src/pages/cockpit/assignmentEvaluationPage/EvaluationSummary.vue
index ce53b692..db9cfe44 100644
--- a/client/src/pages/cockpit/assignmentEvaluationPage/EvaluationSummary.vue
+++ b/client/src/pages/cockpit/assignmentEvaluationPage/EvaluationSummary.vue
@@ -1,6 +1,6 @@
 <script setup lang="ts">
 import ItSuccessAlert from "@/components/ui/ItSuccessAlert.vue";
-import { useCurrentCourseSession } from "@/composables";
+import { useCourseSessionDetailQuery, useCurrentCourseSession } from "@/composables";
 import { UPSERT_ASSIGNMENT_COMPLETION_MUTATION } from "@/graphql/mutations";
 import {
   maxAssignmentPoints,
@@ -41,9 +41,9 @@ const upsertAssignmentCompletionMutation = useMutation(
 
 async function submitEvaluation() {
   upsertAssignmentCompletionMutation.executeMutation({
-    assignmentId: props.assignment.id.toString(),
-    courseSessionId: courseSession.value.id.toString(),
-    assignmentUserId: props.assignmentUser.user_id.toString(),
+    assignmentId: props.assignment.id,
+    courseSessionId: courseSession.value.id,
+    assignmentUserId: props.assignmentUser.user_id,
     completionStatus: "EVALUATION_SUBMITTED",
     completionDataString: JSON.stringify({}),
     evaluationPoints: userPoints.value,
@@ -77,13 +77,13 @@ const userPoints = computed(() =>
   userAssignmentPoints(props.assignment, props.assignmentCompletion)
 );
 
+const courseSessionDetailResult = useCourseSessionDetailQuery();
 const evaluationUser = computed(() => {
   if (props.assignmentCompletion.evaluation_user) {
-    return (courseSession.value.users ?? []).find(
-      (user) => user.user_id === props.assignmentCompletion.evaluation_user
-    ) as CourseSessionUser;
+    return courseSessionDetailResult.findUser(
+      props.assignmentCompletion.evaluation_user
+    );
   }
-
   return undefined;
 });
 </script>
diff --git a/client/src/pages/cockpit/assignmentEvaluationPage/EvaluationTask.vue b/client/src/pages/cockpit/assignmentEvaluationPage/EvaluationTask.vue
index e23242a7..f2c273dc 100644
--- a/client/src/pages/cockpit/assignmentEvaluationPage/EvaluationTask.vue
+++ b/client/src/pages/cockpit/assignmentEvaluationPage/EvaluationTask.vue
@@ -66,9 +66,9 @@ async function evaluateAssignmentCompletion(completionData: AssignmentCompletion
   log.debug("evaluateAssignmentCompletion", completionData);
 
   upsertAssignmentCompletionMutation.executeMutation({
-    assignmentId: props.assignment.id.toString(),
-    courseSessionId: courseSession.value.id.toString(),
-    assignmentUserId: props.assignmentUser.user_id.toString(),
+    assignmentId: props.assignment.id,
+    courseSessionId: courseSession.value.id,
+    assignmentUserId: props.assignmentUser.user_id,
     completionStatus: "EVALUATION_IN_PROGRESS",
     completionDataString: JSON.stringify(completionData),
     // eslint-disable-next-line @typescript-eslint/ban-ts-comment
diff --git a/client/src/pages/cockpit/assignmentsPage/AssignmentDetails.vue b/client/src/pages/cockpit/assignmentsPage/AssignmentDetails.vue
index bd3d1b74..c929761c 100644
--- a/client/src/pages/cockpit/assignmentsPage/AssignmentDetails.vue
+++ b/client/src/pages/cockpit/assignmentsPage/AssignmentDetails.vue
@@ -2,20 +2,17 @@
 import ItPersonRow from "@/components/ui/ItPersonRow.vue";
 import type { StatusCount } from "@/components/ui/ItProgress.vue";
 import type { GradedUser } from "@/services/assignmentService";
-import {
-  findAssignmentDetail,
-  loadAssignmentCompletionStatusData,
-} from "@/services/assignmentService";
-import { useCockpitStore } from "@/stores/cockpit";
+import { loadAssignmentCompletionStatusData } from "@/services/assignmentService";
 import type {
   CourseSession,
   CourseSessionUser,
   LearningContentAssignment,
 } from "@/types";
-import dayjs from "dayjs";
 import log from "loglevel";
 import { computed, onMounted, reactive } from "vue";
 import AssignmentSubmissionProgress from "@/pages/cockpit/cockpitPage/AssignmentSubmissionProgress.vue";
+import { useCourseSessionDetailQuery } from "@/composables";
+import { formatDueDate } from "../../../components/dueDates/dueDatesUtils";
 
 const props = defineProps<{
   courseSession: CourseSession;
@@ -27,7 +24,7 @@ log.debug(
   props.learningContentAssignment.content_assignment_id
 );
 
-const cockpitStore = useCockpitStore();
+const courseSessionDetailResult = useCourseSessionDetailQuery();
 
 const state = reactive({
   progressStatusCount: {} as StatusCount,
@@ -35,6 +32,10 @@ const state = reactive({
   assignmentSubmittedUsers: [] as CourseSessionUser[],
 });
 
+const assignmentDetail = computed(() => {
+  return courseSessionDetailResult.findAssignment(props.learningContentAssignment.id);
+});
+
 onMounted(async () => {
   const { gradedUsers, assignmentSubmittedUsers } =
     await loadAssignmentCompletionStatusData(
@@ -45,10 +46,6 @@ onMounted(async () => {
   state.gradedUsers = gradedUsers;
   state.assignmentSubmittedUsers = assignmentSubmittedUsers;
 });
-
-const assignmentDetail = computed(() =>
-  findAssignmentDetail(props.learningContentAssignment.content_assignment_id)
-);
 </script>
 
 <template>
@@ -60,16 +57,14 @@ const assignmentDetail = computed(() =>
       Circle «{{ learningContentAssignment.parentCircle.title }}»
     </div>
     <div v-if="assignmentDetail">
-      <span>
+      <span v-if="assignmentDetail.submission_deadline?.start">
         {{ $t("Abgabetermin Ergebnisse:") }}
-        {{ dayjs(assignmentDetail.submission_deadline_start).format("DD.MM.YYYY") }}
+        {{ formatDueDate(assignmentDetail.submission_deadline.start) }}
       </span>
-      <template v-if="assignmentDetail.evaluation_deadline_start">
+      <template v-if="assignmentDetail.evaluation_deadline?.start">
         <br />
-        <span v-if="assignmentDetail.evaluation_deadline_start">
-          {{ $t("Freigabetermin Bewertungen:") }}
-          {{ dayjs(assignmentDetail.evaluation_deadline_start).format("DD.MM.YYYY") }}
-        </span>
+        {{ $t("Freigabetermin Bewertungen:") }}
+        {{ formatDueDate(assignmentDetail.evaluation_deadline.start) }}
       </template>
     </div>
     <div v-else>
@@ -85,11 +80,11 @@ const assignmentDetail = computed(() =>
       />
     </div>
 
-    <div v-if="cockpitStore.courseSessionMembers?.length" class="mt-6">
+    <div v-if="courseSessionDetailResult.filterMembers().length" class="mt-6">
       <ul>
         <ItPersonRow
-          v-for="csu in cockpitStore.courseSessionMembers"
-          :key="csu.user_id + csu.session_title"
+          v-for="csu in courseSessionDetailResult.filterMembers()"
+          :key="csu.user_id"
           :name="`${csu.first_name} ${csu.last_name}`"
           :avatar-url="csu.avatar_url"
           :data-cy="csu.last_name"
diff --git a/client/src/pages/cockpit/assignmentsPage/AssignmentsPage.vue b/client/src/pages/cockpit/assignmentsPage/AssignmentsPage.vue
index e94a17d5..6dd4cb1e 100644
--- a/client/src/pages/cockpit/assignmentsPage/AssignmentsPage.vue
+++ b/client/src/pages/cockpit/assignmentsPage/AssignmentsPage.vue
@@ -25,7 +25,7 @@ onMounted(async () => {
 const learningContentAssignment = computed(() => {
   return calcLearningContentAssignments(
     learningPathStore.learningPathForUser(courseSession.value.course.slug, userStore.id)
-  ).filter((lc) => lc.id.toString() === props.assignmentId)[0];
+  ).filter((lc) => lc.id === props.assignmentId)[0];
 });
 </script>
 
diff --git a/client/src/pages/cockpit/attendanceCheckPage/AttendanceCheckPage.vue b/client/src/pages/cockpit/attendanceCheckPage/AttendanceCheckPage.vue
index 852b8be9..7433a216 100644
--- a/client/src/pages/cockpit/attendanceCheckPage/AttendanceCheckPage.vue
+++ b/client/src/pages/cockpit/attendanceCheckPage/AttendanceCheckPage.vue
@@ -2,10 +2,9 @@
 import ItCheckbox from "@/components/ui/ItCheckbox.vue";
 import ItDropdownSelect from "@/components/ui/ItDropdownSelect.vue";
 import ItPersonRow from "@/components/ui/ItPersonRow.vue";
-import { useCurrentCourseSession } from "@/composables";
+import { useCourseSessionDetailQuery } from "@/composables";
 import type { AttendanceUserStatus } from "@/gql/graphql";
 import { ATTENDANCE_CHECK_MUTATION } from "@/graphql/mutations";
-import { useCockpitStore } from "@/stores/cockpit";
 import type { DropdownSelectable } from "@/types";
 import { useMutation } from "@urql/vue";
 import dayjs from "dayjs";
@@ -16,12 +15,15 @@ import { ATTENDANCE_CHECK_QUERY } from "@/graphql/queries";
 import { graphqlClient } from "@/graphql/client";
 
 const { t } = useTranslation();
-const cockpitStore = useCockpitStore();
-const courseSession = useCurrentCourseSession();
 const attendanceMutation = useMutation(ATTENDANCE_CHECK_MUTATION);
+const courseSessionDetailResult = useCourseSessionDetailQuery();
 
 const attendanceCourses = computed(() => {
-  return courseSession.value.attendance_courses;
+  return courseSessionDetailResult.courseSessionDetail.value?.attendance_courses ?? [];
+});
+
+const courseSessionDetail = computed(() => {
+  return courseSessionDetailResult.courseSessionDetail.value;
 });
 
 const presenceCoursesDropdownOptions = computed(() => {
@@ -29,9 +31,9 @@ const presenceCoursesDropdownOptions = computed(() => {
     (attendanceCourse) =>
       ({
         id: attendanceCourse.id,
-        name: `${t("Präsenzkurs")} ${attendanceCourse.circle_title} ${dayjs(
-          attendanceCourse.start
-        ).format("DD.MM.YYYY")}`,
+        name: `${t("Präsenzkurs")} ${
+          attendanceCourse.learning_content.circle.title
+        } ${dayjs(attendanceCourse.due_date.start).format("DD.MM.YYYY")}`,
       } as DropdownSelectable)
   );
 });
@@ -43,6 +45,16 @@ const state = reactive({
   attendanceSaved: false,
 });
 
+watch(
+  attendanceCourses,
+  (newVal) => {
+    if (newVal && newVal.length > 0) {
+      state.attendanceCourseSelected = presenceCoursesDropdownOptions.value[0];
+    }
+  },
+  { immediate: true }
+);
+
 function resetState() {
   state.userPresence = new Map<string, boolean>();
   state.disclaimerConfirmed = false;
@@ -76,23 +88,25 @@ const onSubmit = async () => {
 const loadAttendanceData = async () => {
   resetState();
   // with changing variables `useQuery` does not seem to work correctly
-  const res = await graphqlClient.query(
-    ATTENDANCE_CHECK_QUERY,
-    {
-      courseSessionId: state.attendanceCourseSelected.id.toString(),
-    },
-    {
-      requestPolicy: "network-only",
+  if (state.attendanceCourseSelected) {
+    const res = await graphqlClient.query(
+      ATTENDANCE_CHECK_QUERY,
+      {
+        courseSessionId: state.attendanceCourseSelected.id.toString(),
+      },
+      {
+        requestPolicy: "network-only",
+      }
+    );
+    const attendanceUserList =
+      res.data?.course_session_attendance_course?.attendance_user_list ?? [];
+    for (const user of attendanceUserList) {
+      if (!user) continue;
+      state.userPresence.set(user.user_id, user.status === "PRESENT");
+    }
+    if (attendanceUserList.length !== 0) {
+      state.attendanceSaved = true;
     }
-  );
-  const attendanceUserList =
-    res.data?.course_session_attendance_course?.attendance_user_list ?? [];
-  for (const user of attendanceUserList) {
-    if (!user) continue;
-    state.userPresence.set(user.user_id.toString(), user.status === "PRESENT");
-  }
-  if (attendanceUserList.length !== 0) {
-    state.attendanceSaved = true;
   }
 };
 
@@ -110,89 +124,93 @@ watch(
   () => {
     log.debug("attendanceCourseSelected changed", state.attendanceCourseSelected);
     loadAttendanceData();
-  }
+  },
+  { immediate: true }
 );
 </script>
 
 <template>
   <div class="bg-gray-200">
-    <div v-if="courseSession" class="container-large">
+    <div v-if="courseSessionDetail" class="container-large">
       <nav class="py-4 pb-4">
         <router-link
           class="btn-text inline-flex items-center pl-0"
-          :to="`/course/${courseSession.course.slug}/cockpit`"
+          :to="`/course/${courseSessionDetail.course.slug}/cockpit`"
         >
           <it-icon-arrow-left />
           <span>{{ $t("general.back") }}</span>
         </router-link>
       </nav>
       <div class="pb-4 text-xl font-bold">{{ $t("Anwesenheit Präsenzkurse") }}</div>
-      <div class="flex flex-row justify-between bg-white p-6">
-        <ItDropdownSelect
-          v-model="state.attendanceCourseSelected"
-          :items="presenceCoursesDropdownOptions ?? []"
-        ></ItDropdownSelect>
-        <div v-if="!state.attendanceSaved" class="flex flex-row items-center">
-          <ItCheckbox
-            :checkbox-item="{
-              value: true,
-              checked: state.disclaimerConfirmed,
-            }"
-            @toggle="state.disclaimerConfirmed = !state.disclaimerConfirmed"
-          ></ItCheckbox>
-          <p class="w-64 pr-4 text-sm">
-            {{
-              $t(
-                "Ich will die Anwesenheit der untenstehenden Personen definitiv bestätigen."
-              )
-            }}
-          </p>
-          <button
-            class="btn-primary"
-            :disabled="!state.disclaimerConfirmed"
-            @click="onSubmit"
-          >
-            {{ $t("Anwesenheit bestätigen") }}
-          </button>
-        </div>
-        <div v-else class="self-center">
-          <p class="text-base">
-            {{ $t("a.Die Anwesenheit wurde definitiv bestätigt") }}
-          </p>
-          <button class="btn-link link" @click="editAgain()">
-            {{ $t("a.Erneut bearbeiten") }}
-          </button>
-        </div>
-      </div>
 
-      <div class="mt-4 flex flex-col bg-white p-6">
-        <div
-          v-for="(csu, index) in cockpitStore.courseSessionMembers"
-          :key="csu.user_id + csu.session_title"
-        >
-          <ItPersonRow
-            :name="`${csu.first_name} ${csu.last_name}`"
-            :avatar-url="csu.avatar_url"
-            :class="0 === index ? 'border-none' : ''"
-          >
-            <template #leading>
-              <ItCheckbox
-                :disabled="state.attendanceSaved"
-                :checkbox-item="{
-                  value: true,
-                  checked: state.userPresence.get(csu.user_id.toString()) as boolean,
-                }"
-                @toggle="
-                  state.userPresence.set(
-                    csu.user_id.toString(),
-                    !state.userPresence.get(csu.user_id.toString())
-                  )
-                "
-              ></ItCheckbox>
-            </template>
-          </ItPersonRow>
+      <section v-if="attendanceCourses.length && state.attendanceCourseSelected">
+        <div class="flex flex-row justify-between bg-white p-6">
+          <ItDropdownSelect
+            v-model="state.attendanceCourseSelected"
+            :items="presenceCoursesDropdownOptions ?? []"
+          ></ItDropdownSelect>
+          <div v-if="!state.attendanceSaved" class="flex flex-row items-center">
+            <ItCheckbox
+              :checkbox-item="{
+                value: true,
+                checked: state.disclaimerConfirmed,
+              }"
+              @toggle="state.disclaimerConfirmed = !state.disclaimerConfirmed"
+            ></ItCheckbox>
+            <p class="w-64 pr-4 text-sm">
+              {{
+                $t(
+                  "Ich will die Anwesenheit der untenstehenden Personen definitiv bestätigen."
+                )
+              }}
+            </p>
+            <button
+              class="btn-primary"
+              :disabled="!state.disclaimerConfirmed"
+              @click="onSubmit"
+            >
+              {{ $t("Anwesenheit bestätigen") }}
+            </button>
+          </div>
+          <div v-else class="self-center">
+            <p class="text-base">
+              {{ $t("a.Die Anwesenheit wurde definitiv bestätigt") }}
+            </p>
+            <button class="btn-link link" @click="editAgain()">
+              {{ $t("a.Erneut bearbeiten") }}
+            </button>
+          </div>
         </div>
-      </div>
+
+        <div class="mt-4 flex flex-col bg-white p-6">
+          <div
+            v-for="(csu, index) in courseSessionDetailResult.filterMembers()"
+            :key="csu.user_id"
+          >
+            <ItPersonRow
+              :name="`${csu.first_name} ${csu.last_name}`"
+              :avatar-url="csu.avatar_url"
+              :class="0 === index ? 'border-none' : ''"
+            >
+              <template #leading>
+                <ItCheckbox
+                  :disabled="state.attendanceSaved"
+                  :checkbox-item="{
+                  value: true,
+                  checked: state.userPresence.get(csu.user_id) as boolean,
+                }"
+                  @toggle="
+                    state.userPresence.set(
+                      csu.user_id,
+                      !state.userPresence.get(csu.user_id)
+                    )
+                  "
+                ></ItCheckbox>
+              </template>
+            </ItPersonRow>
+          </div>
+        </div>
+      </section>
     </div>
   </div>
 </template>
diff --git a/client/src/pages/cockpit/cockpitPage/AssignmentSubmissionProgress.vue b/client/src/pages/cockpit/cockpitPage/AssignmentSubmissionProgress.vue
index 07d21712..66674d63 100644
--- a/client/src/pages/cockpit/cockpitPage/AssignmentSubmissionProgress.vue
+++ b/client/src/pages/cockpit/cockpitPage/AssignmentSubmissionProgress.vue
@@ -25,7 +25,7 @@ const state = reactive({
   statusByUser: [] as {
     userStatus: AssignmentCompletionStatus;
     progressStatus: StatusCountKey;
-    userId: number;
+    userId: string;
   }[],
   submissionProgressStatusCount: {} as StatusCount,
   gradingProgressStatusCount: {} as StatusCount,
diff --git a/client/src/pages/cockpit/cockpitPage/CockpitDates.vue b/client/src/pages/cockpit/cockpitPage/CockpitDates.vue
index f1cea728..ec81e8a8 100644
--- a/client/src/pages/cockpit/cockpitPage/CockpitDates.vue
+++ b/client/src/pages/cockpit/cockpitPage/CockpitDates.vue
@@ -10,9 +10,7 @@ const courseSession = useCurrentCourseSession();
 const circleDates = computed(() => {
   const dueDates = courseSession.value.due_dates.filter((dueDate) => {
     if (!cockpitStore.currentCircle) return false;
-    return (
-      cockpitStore.currentCircle.translation_key == dueDate?.circle?.translation_key
-    );
+    return cockpitStore.currentCircle.id == dueDate?.circle?.id;
   });
   return dueDates.slice(0, 4);
 });
diff --git a/client/src/pages/cockpit/cockpitPage/CockpitPage.vue b/client/src/pages/cockpit/cockpitPage/CockpitPage.vue
index 99c0668b..f8b1188a 100644
--- a/client/src/pages/cockpit/cockpitPage/CockpitPage.vue
+++ b/client/src/pages/cockpit/cockpitPage/CockpitPage.vue
@@ -3,14 +3,13 @@ import LearningPathDiagram from "@/components/learningPath/LearningPathDiagram.v
 import ItPersonRow from "@/components/ui/ItPersonRow.vue";
 import type { LearningPath } from "@/services/learningPath";
 
-import { useCurrentCourseSession } from "@/composables";
+import { useCourseSessionDetailQuery, useCurrentCourseSession } from "@/composables";
 import SubmissionsOverview from "@/pages/cockpit/cockpitPage/SubmissionsOverview.vue";
 import { useCockpitStore } from "@/stores/cockpit";
 import { useCompetenceStore } from "@/stores/competence";
 import { useLearningPathStore } from "@/stores/learningPath";
 import log from "loglevel";
 import CockpitDates from "@/pages/cockpit/cockpitPage/CockpitDates.vue";
-import { useCourseSessionsStore } from "@/stores/courseSessions";
 import ItDropdownSelect from "@/components/ui/ItDropdownSelect.vue";
 
 const props = defineProps<{
@@ -23,7 +22,7 @@ const cockpitStore = useCockpitStore();
 const competenceStore = useCompetenceStore();
 const learningPathStore = useLearningPathStore();
 const courseSession = useCurrentCourseSession();
-const courseSessionsStore = useCourseSessionsStore();
+const courseSessionDetailResult = useCourseSessionDetailQuery();
 
 function userCountStatusForCircle(userId: string) {
   if (!cockpitStore.currentCircle) return { FAIL: 0, SUCCESS: 0, UNKNOWN: 0 };
@@ -37,175 +36,178 @@ function userCountStatusForCircle(userId: string) {
 
 <template>
   <div class="bg-gray-200">
-    <div v-if="cockpitStore.currentCircle" class="container-large">
-      <div class="mb-9 flex flex-col lg:flex-row lg:items-center lg:justify-between">
-        <h1>Cockpit</h1>
-        <ItDropdownSelect
-          :model-value="cockpitStore.selectedCircle"
-          class="mt-4 w-full lg:mt-0 lg:w-96"
-          :items="cockpitStore.circles"
-          @update:model-value="cockpitStore.setCurrentCourseCircleFromEvent"
-        ></ItDropdownSelect>
-      </div>
-      <!-- Status -->
-      <div class="mb-4 gap-4 lg:grid lg:grid-cols-3 lg:grid-rows-none">
-        <div class="my-4 flex flex-col justify-between bg-white p-6 lg:my-0">
-          <div>
-            <h3 class="heading-3 mb-4 flex items-center gap-2">
-              {{ $t("Trainerunterlagen") }}
-            </h3>
-            <div class="mb-4">
-              {{ $t("cockpit.trainerFilesText") }}
+    <div v-if="cockpitStore.circles?.length">
+      <div v-if="cockpitStore.currentCircle" class="container-large">
+        <div class="mb-9 flex flex-col lg:flex-row lg:items-center lg:justify-between">
+          <h1>Cockpit</h1>
+          <ItDropdownSelect
+            :model-value="cockpitStore.currentCircle"
+            class="mt-4 w-full lg:mt-0 lg:w-96"
+            :items="cockpitStore.circles"
+            @update:model-value="cockpitStore.setCurrentCourseCircleFromEvent"
+          ></ItDropdownSelect>
+        </div>
+        <!-- Status -->
+        <div class="mb-4 gap-4 lg:grid lg:grid-cols-3 lg:grid-rows-none">
+          <div class="my-4 flex flex-col justify-between bg-white p-6 lg:my-0">
+            <div>
+              <h3 class="heading-3 mb-4 flex items-center gap-2">
+                {{ $t("Trainerunterlagen") }}
+              </h3>
+              <div class="mb-4">
+                {{ $t("cockpit.trainerFilesText") }}
+              </div>
+            </div>
+            <div>
+              <a
+                href="https://vbvbern.sharepoint.com/sites/myVBV-AFA_K-CI"
+                class="btn-secondary min-w-min"
+                target="_blank"
+              >
+                {{ $t("MS Teams öffnen") }}
+              </a>
             </div>
           </div>
-          <div>
-            <a
-              href="https://vbvbern.sharepoint.com/sites/myVBV-AFA_K-CI"
-              class="btn-secondary min-w-min"
-              target="_blank"
-            >
-              {{ $t("MS Teams öffnen") }}
-            </a>
+          <div class="my-4 flex flex-col justify-between bg-white p-6 lg:my-0">
+            <div>
+              <h3 class="heading-3 mb-4 flex items-center gap-2">
+                {{ $t("a.Unterlagen für Teilnehmenden") }}
+              </h3>
+              <div class="mb-4">
+                {{ $t("a.Stelle deinen Lernenden zusätzliche Inhalte zur Verfügung.") }}
+              </div>
+              <!--            <div-->
+              <!--              v-if="courseSessionsStore.circleDocuments.length"-->
+              <!--              class="mb-4 flex items-center gap-x-2"-->
+              <!--            >-->
+              <!--              <it-icon-document />-->
+              <!--              {{ courseSessionsStore.circleDocuments.length }} {{ $t("a.Unterlagen") }}-->
+              <!--            </div>-->
+            </div>
+            <div>
+              <router-link
+                :to="`/course/${props.courseSlug}/cockpit/documents`"
+                class="btn-secondary min-w-min"
+              >
+                {{ $t("a.Zum Unterlagen-Upload") }}
+              </router-link>
+            </div>
+          </div>
+          <div class="my-4 flex flex-col justify-between bg-white p-6 lg:my-0">
+            <div>
+              <h3 class="heading-3 mb-4 flex items-center gap-2">
+                {{ $t("Anwesenheitskontrolle Präsenzkurse") }}
+              </h3>
+              <div class="mb-4">
+                {{
+                  $t(
+                    "Hier überprüfst und bestätigst du die Anwesenheit deiner Teilnehmenden."
+                  )
+                }}
+              </div>
+            </div>
+            <div>
+              <router-link
+                :to="`/course/${props.courseSlug}/cockpit/attendance`"
+                class="btn-secondary min-w-min"
+              >
+                {{ $t("Anwesenheit prüfen") }}
+              </router-link>
+            </div>
           </div>
         </div>
-        <div class="my-4 flex flex-col justify-between bg-white p-6 lg:my-0">
-          <div>
-            <h3 class="heading-3 mb-4 flex items-center gap-2">
-              {{ $t("a.Unterlagen für Teilnehmenden") }}
-            </h3>
-            <div class="mb-4">
-              {{ $t("a.Stelle deinen Lernenden zusätzliche Inhalte zur Verfügung.") }}
-            </div>
-            <div
-              v-if="courseSessionsStore.circleDocuments.length"
-              class="mb-4 flex items-center gap-x-2"
-            >
-              <it-icon-document />
-              {{ courseSessionsStore.circleDocuments.length }} {{ $t("a.Unterlagen") }}
-            </div>
-          </div>
-          <div>
-            <router-link
-              :to="`/course/${props.courseSlug}/cockpit/documents`"
-              class="btn-secondary min-w-min"
-            >
-              {{ $t("a.Zum Unterlagen-Upload") }}
-            </router-link>
-          </div>
-        </div>
-        <div class="my-4 flex flex-col justify-between bg-white p-6 lg:my-0">
-          <div>
-            <h3 class="heading-3 mb-4 flex items-center gap-2">
-              {{ $t("Anwesenheitskontrolle Präsenzkurse") }}
-            </h3>
-            <div class="mb-4">
-              {{
-                $t(
-                  "Hier überprüfst und bestätigst du die Anwesenheit deiner Teilnehmenden."
-                )
-              }}
-            </div>
-          </div>
-          <div>
-            <router-link
-              :to="`/course/${props.courseSlug}/cockpit/attendance`"
-              class="btn-secondary min-w-min"
-            >
-              {{ $t("Anwesenheit prüfen") }}
-            </router-link>
-          </div>
-        </div>
-      </div>
 
-      <div class="mb-4 bg-white p-6">
-        <CockpitDates></CockpitDates>
-      </div>
-      <SubmissionsOverview
-        :course-session="courseSession"
-        :selected-circle="cockpitStore.currentCircle.id"
-      ></SubmissionsOverview>
-      <div class="pt-4">
-        <!-- progress -->
-        <div v-if="cockpitStore.courseSessionMembers" class="bg-white p-6">
-          <h1 class="heading-3 mb-5">{{ $t("cockpit.progress") }}</h1>
-          <ul>
-            <ItPersonRow
-              v-for="csu in cockpitStore.courseSessionMembers"
-              :key="csu.user_id + csu.session_title"
-              :name="`${csu.first_name} ${csu.last_name}`"
-              :avatar-url="csu.avatar_url"
-            >
-              <template #center>
-                <div
-                  class="mt-2 flex w-full flex-col items-center justify-between lg:mt-0 lg:flex-row"
-                >
-                  <LearningPathDiagram
-                    v-if="
-                      learningPathStore.learningPathForUser(
-                        props.courseSlug,
-                        csu.user_id
-                      )
-                    "
-                    :learning-path="
+        <div class="mb-4 bg-white p-6">
+          <CockpitDates></CockpitDates>
+        </div>
+        <SubmissionsOverview
+          :course-session="courseSession"
+          :selected-circle="cockpitStore.currentCircle.id"
+        ></SubmissionsOverview>
+        <div class="pt-4">
+          <!-- progress -->
+          <div
+            v-if="courseSessionDetailResult.filterMembers().length > 0"
+            class="bg-white p-6"
+          >
+            <h1 class="heading-3 mb-5">{{ $t("cockpit.progress") }}</h1>
+            <ul>
+              <ItPersonRow
+                v-for="csu in courseSessionDetailResult.filterMembers()"
+                :key="csu.user_id"
+                :name="`${csu.first_name} ${csu.last_name}`"
+                :avatar-url="csu.avatar_url"
+              >
+                <template #center>
+                  <div
+                    class="mt-2 flex w-full flex-col items-center justify-between lg:mt-0 lg:flex-row"
+                  >
+                    <LearningPathDiagram
+                      v-if="
+                        learningPathStore.learningPathForUser(
+                          props.courseSlug,
+                          csu.user_id
+                        )
+                      "
+                      :learning-path="
                           learningPathStore.learningPathForUser(
                             props.courseSlug,
                             csu.user_id
                           ) as LearningPath
                         "
-                    :show-circle-translation-keys="[
-                      cockpitStore.currentCircle.translation_key,
-                    ]"
-                    diagram-type="singleSmall"
-                    class="mr-4"
-                  ></LearningPathDiagram>
-                  <p class="lg:min-w-[150px]">
-                    {{ cockpitStore.currentCircle.title }}
-                  </p>
-                  <div class="ml-4 flex flex-row items-center">
-                    <div class="mr-6 flex flex-row items-center">
-                      <it-icon-smiley-thinking
-                        class="mr-2 inline-block h-8 w-8"
-                      ></it-icon-smiley-thinking>
-                      <p class="text-bold inline-block w-6">
-                        {{ userCountStatusForCircle(csu.user_id).FAIL }}
-                      </p>
+                      :show-circle-slugs="[cockpitStore.currentCircle.slug]"
+                      diagram-type="singleSmall"
+                      class="mr-4"
+                    ></LearningPathDiagram>
+                    <p class="lg:min-w-[150px]">
+                      {{ cockpitStore.currentCircle.title }}
+                    </p>
+                    <div class="ml-4 flex flex-row items-center">
+                      <div class="mr-6 flex flex-row items-center">
+                        <it-icon-smiley-thinking
+                          class="mr-2 inline-block h-8 w-8"
+                        ></it-icon-smiley-thinking>
+                        <p class="text-bold inline-block w-6">
+                          {{ userCountStatusForCircle(csu.user_id).FAIL }}
+                        </p>
+                      </div>
+                      <li class="mr-6 flex flex-row items-center">
+                        <it-icon-smiley-happy
+                          class="mr-2 inline-block h-8 w-8"
+                        ></it-icon-smiley-happy>
+                        <p class="text-bold inline-block w-6">
+                          {{ userCountStatusForCircle(csu.user_id).SUCCESS }}
+                        </p>
+                      </li>
+                      <li class="flex flex-row items-center">
+                        <it-icon-smiley-neutral
+                          class="mr-2 inline-block h-8 w-8"
+                        ></it-icon-smiley-neutral>
+                        <p class="text-bold inline-block w-6">
+                          {{ userCountStatusForCircle(csu.user_id).UNKNOWN }}
+                        </p>
+                      </li>
                     </div>
-                    <li class="mr-6 flex flex-row items-center">
-                      <it-icon-smiley-happy
-                        class="mr-2 inline-block h-8 w-8"
-                      ></it-icon-smiley-happy>
-                      <p class="text-bold inline-block w-6">
-                        {{ userCountStatusForCircle(csu.user_id).SUCCESS }}
-                      </p>
-                    </li>
-                    <li class="flex flex-row items-center">
-                      <it-icon-smiley-neutral
-                        class="mr-2 inline-block h-8 w-8"
-                      ></it-icon-smiley-neutral>
-                      <p class="text-bold inline-block w-6">
-                        {{ userCountStatusForCircle(csu.user_id).UNKNOWN }}
-                      </p>
-                    </li>
                   </div>
-                </div>
-              </template>
-              <template #link>
-                <router-link
-                  :to="`/course/${props.courseSlug}/cockpit/profile/${csu.user_id}`"
-                  class="link w-full lg:text-right"
-                >
-                  {{ $t("general.profileLink") }}
-                </router-link>
-              </template>
-            </ItPersonRow>
-          </ul>
+                </template>
+                <template #link>
+                  <router-link
+                    :to="`/course/${props.courseSlug}/cockpit/profile/${csu.user_id}`"
+                    class="link w-full lg:text-right"
+                  >
+                    {{ $t("general.profileLink") }}
+                  </router-link>
+                </template>
+              </ItPersonRow>
+            </ul>
+          </div>
         </div>
       </div>
-    </div>
-    <div v-else class="container-large mt-4">
-      <span class="text-lg text-orange-600">
-        {{ $t("a.Kein Circle verfügbar oder ausgewählt.") }}
-      </span>
+      <div v-else class="container-large mt-4">
+        <span class="text-lg text-orange-600">
+          {{ $t("a.Kein Circle verfügbar oder ausgewählt.") }}
+        </span>
+      </div>
     </div>
   </div>
 </template>
diff --git a/client/src/pages/cockpit/cockpitPage/FeedbackSubmissionProgress.vue b/client/src/pages/cockpit/cockpitPage/FeedbackSubmissionProgress.vue
index 78c16ff7..111e915f 100644
--- a/client/src/pages/cockpit/cockpitPage/FeedbackSubmissionProgress.vue
+++ b/client/src/pages/cockpit/cockpitPage/FeedbackSubmissionProgress.vue
@@ -4,21 +4,20 @@ import log from "loglevel";
 import { computed, onMounted, ref } from "vue";
 import ItProgress from "@/components/ui/ItProgress.vue";
 import { itGet } from "@/fetchHelpers";
-import { useCockpitStore } from "@/stores/cockpit";
+import { useCourseSessionDetailQuery } from "@/composables";
 
 const props = defineProps<{
   courseSession: CourseSession;
-  circleId: number;
+  circleId: string;
 }>();
 
 log.debug("FeedbackSubmissionProgress created");
 
-const cockpitStore = useCockpitStore();
-
+const courseSessionDetailResult = useCourseSessionDetailQuery();
 const completeFeedbacks = ref(0);
 
 const numFeedbacks = computed(() => {
-  return cockpitStore.courseSessionMembers?.length ?? 0;
+  return courseSessionDetailResult.filterMembers().length;
 });
 
 onMounted(async () => {
diff --git a/client/src/pages/cockpit/cockpitPage/SubmissionsOverview.vue b/client/src/pages/cockpit/cockpitPage/SubmissionsOverview.vue
index e323cf10..4dcd86fe 100644
--- a/client/src/pages/cockpit/cockpitPage/SubmissionsOverview.vue
+++ b/client/src/pages/cockpit/cockpitPage/SubmissionsOverview.vue
@@ -1,7 +1,6 @@
 2
 <script setup lang="ts">
 import AssignmentSubmissionProgress from "@/pages/cockpit/cockpitPage/AssignmentSubmissionProgress.vue";
-import { useCockpitStore } from "@/stores/cockpit";
 import { useLearningPathStore } from "@/stores/learningPath";
 import { useUserStore } from "@/stores/user";
 import type {
@@ -14,9 +13,10 @@ import { computed } from "vue";
 import { useTranslation } from "i18next-vue";
 import FeedbackSubmissionProgress from "@/pages/cockpit/cockpitPage/FeedbackSubmissionProgress.vue";
 import { learningContentTypeData } from "@/utils/typeMaps";
+import { useCourseSessionDetailQuery } from "@/composables";
 
 interface Submittable {
-  id: number;
+  id: string;
   circleName: string;
   frontendUrl: string;
   title: string;
@@ -27,14 +27,15 @@ interface Submittable {
 
 const props = defineProps<{
   courseSession: CourseSession;
-  selectedCircle: number;
+  selectedCircle: string;
 }>();
 
 log.debug("SubmissionsOverview created", props.courseSession.id);
 
 const userStore = useUserStore();
-const cockpitStore = useCockpitStore();
 const learningPathStore = useLearningPathStore();
+const courseSessionDetailResult = useCourseSessionDetailQuery();
+
 const { t } = useTranslation();
 
 const submittables = computed(() => {
@@ -128,7 +129,10 @@ const getIconName = (lc: LearningContent) => {
 
 <template>
   <div class="bg-white px-6 py-2">
-    <div v-if="cockpitStore.courseSessionMembers" class="divide-y divide-gray-500">
+    <div
+      v-if="courseSessionDetailResult.filterMembers().length"
+      class="divide-y divide-gray-500"
+    >
       <div
         v-for="submittable in submittables"
         :key="submittable.id"
diff --git a/client/src/pages/cockpit/documentPage/DocumentPage.vue b/client/src/pages/cockpit/documentPage/DocumentPage.vue
index 7e68b5cd..694a25c1 100644
--- a/client/src/pages/cockpit/documentPage/DocumentPage.vue
+++ b/client/src/pages/cockpit/documentPage/DocumentPage.vue
@@ -4,34 +4,80 @@ import ItDropdownSelect from "@/components/ui/ItDropdownSelect.vue";
 import { useCockpitStore } from "@/stores/cockpit";
 import ItModal from "@/components/ui/ItModal.vue";
 import DocumentUploadForm from "@/pages/cockpit/documentPage/DocumentUploadForm.vue";
-import { computed, ref, watch } from "vue";
-import { useCircleStore } from "@/stores/circle";
+import { computed, onMounted, ref, watch } from "vue";
 import { useTranslation } from "i18next-vue";
 import type { CircleDocument, DocumentUploadData } from "@/types";
 import dialog from "@/utils/confirm-dialog";
 import log from "loglevel";
-import { uploadCircleDocument } from "@/services/files";
+import {
+  deleteCircleDocument,
+  fetchCourseSessionDocuments,
+  uploadCircleDocument,
+} from "@/services/files";
 import { useCourseSessionsStore } from "@/stores/courseSessions";
 import DocumentListItem from "@/components/circle/DocumentListItem.vue";
+import { useCircleStore } from "@/stores/circle";
 
 const cockpitStore = useCockpitStore();
 const courseSession = useCurrentCourseSession();
+const circleStore = useCircleStore();
 
 const courseSessionsStore = useCourseSessionsStore();
 
-const circleStore = useCircleStore();
 const { t } = useTranslation();
 
 const showUploadModal = ref(false);
 const showUploadErrorMessage = ref(false);
 const isUploading = ref(false);
+
+const circleDocumentsResultData = ref<CircleDocument[]>([]);
+let courseSessionDocumentsUrl = "";
+
+async function fetchDocuments() {
+  const result = await fetchCourseSessionDocuments(courseSession.value?.id);
+  if (result.length > 0) {
+    circleDocumentsResultData.value = result;
+  } else {
+    circleDocumentsResultData.value = [];
+  }
+}
+
+onMounted(async () => {
+  log.debug("DocumentPage mounted");
+  if (courseSession.value?.id) {
+    courseSessionDocumentsUrl = `/api/core/document/list/${courseSession.value?.id}/`;
+  }
+
+  await fetchDocuments();
+});
+
+watch(
+  // workaround to load learning sequences when circle changes
+  () => cockpitStore.currentCircle,
+  async () => {
+    if (cockpitStore.currentCircle) {
+      await circleStore.loadCircle(
+        courseSession.value?.course.slug,
+        cockpitStore.currentCircle?.slug
+      );
+    }
+  },
+  { immediate: true }
+);
+
 const dropdownLearningSequences = computed(() =>
   circleStore.circle?.learningSequences.map((sequence) => ({
     id: sequence.id,
-    name: sequence.title,
+    name: `${sequence.title}`,
   }))
 );
 
+const circleDocuments = computed(() => {
+  return circleDocumentsResultData.value.filter(
+    (d) => d.learning_sequence.circle.slug === cockpitStore.currentCircle?.slug
+  );
+});
+
 const deleteDocument = async (doc: CircleDocument) => {
   const options = {
     title: t("circlePage.documents.deleteModalTitle"),
@@ -39,7 +85,10 @@ const deleteDocument = async (doc: CircleDocument) => {
   };
   try {
     await dialog.confirm(options);
-    courseSessionsStore.removeDocument(doc.id);
+    await deleteCircleDocument(doc.id, courseSessionDocumentsUrl);
+    circleDocumentsResultData.value = circleDocumentsResultData.value.filter(
+      (d) => d.id !== doc.id
+    );
   } catch (e) {
     log.debug("rejected");
   }
@@ -53,11 +102,13 @@ async function uploadDocument(data: DocumentUploadData) {
     if (!courseSessionsStore.currentCourseSession) {
       throw new Error("No course session found");
     }
-    const newDocument = await uploadCircleDocument(
+    await uploadCircleDocument(
       data,
-      courseSessionsStore.currentCourseSession.id
+      courseSessionsStore.currentCourseSession.id,
+      courseSessionDocumentsUrl
     );
-    courseSessionsStore.addDocument(newDocument);
+    await fetchDocuments();
+
     showUploadModal.value = false;
     isUploading.value = false;
   } catch (error) {
@@ -84,7 +135,7 @@ async function uploadDocument(data: DocumentUploadData) {
         <div class="mb-9 flex flex-col lg:flex-row lg:items-center lg:justify-between">
           <h2>{{ t("a.Unterlagen für Teilnehmenden") }}</h2>
           <ItDropdownSelect
-            :model-value="cockpitStore.selectedCircle"
+            :model-value="cockpitStore.currentCircle"
             class="mt-4 w-full lg:mt-0 lg:w-96"
             :items="cockpitStore.circles"
             @update:model-value="cockpitStore.setCurrentCourseCircleFromEvent"
@@ -96,23 +147,15 @@ async function uploadDocument(data: DocumentUploadData) {
             {{ t("circlePage.documents.action") }}
           </button>
 
-          <ul
-            v-if="courseSessionsStore.circleDocuments.length"
-            class="mt-8 border-t border-t-gray-500"
-          >
-            <template
-              v-for="learningSequence of courseSessionsStore.circleDocuments"
-              :key="learningSequence.id"
-            >
-              <DocumentListItem
-                v-for="doc of learningSequence.documents"
-                :key="doc.url"
-                :subtitle="learningSequence.title"
-                :can-delete="courseSessionsStore.canUploadCircleDocuments"
-                :doc="doc"
-                @delete="deleteDocument(doc)"
-              />
-            </template>
+          <ul v-if="circleDocuments.length" class="mt-8 border-t border-t-gray-500">
+            <DocumentListItem
+              v-for="doc of circleDocuments"
+              :key="doc.url"
+              :subtitle="doc.learning_sequence.title"
+              :can-delete="true"
+              :doc="doc"
+              @delete="deleteDocument(doc)"
+            />
           </ul>
         </div>
         <ItModal v-model="showUploadModal">
diff --git a/client/src/pages/cockpit/documentPage/DocumentUploadForm.vue b/client/src/pages/cockpit/documentPage/DocumentUploadForm.vue
index 1fbe6452..1946b2f5 100644
--- a/client/src/pages/cockpit/documentPage/DocumentUploadForm.vue
+++ b/client/src/pages/cockpit/documentPage/DocumentUploadForm.vue
@@ -26,7 +26,7 @@ const formData = reactive<DocumentUploadData>({
   file: null,
   name: "",
   learningSequence: {
-    id: -1,
+    id: "-1",
     name: t("circlePage.documents.chooseSequence"),
   },
 });
@@ -56,7 +56,7 @@ function submitForm() {
 
 function validateForm() {
   formErrors.file = formData.file === null;
-  formErrors.learningSequence = formData.learningSequence.id === -1;
+  formErrors.learningSequence = formData.learningSequence.id === "-1";
   formErrors.name = formData.name === "";
 
   for (const [, value] of Object.entries(formErrors)) {
diff --git a/client/src/pages/competence/CompetenceCertificateDetailPage.vue b/client/src/pages/competence/CompetenceCertificateDetailPage.vue
index 54e2a2b3..43dd169c 100644
--- a/client/src/pages/competence/CompetenceCertificateDetailPage.vue
+++ b/client/src/pages/competence/CompetenceCertificateDetailPage.vue
@@ -20,7 +20,7 @@ const certificatesQuery = useQuery({
   query: COMPETENCE_NAVI_CERTIFICATE_QUERY,
   variables: {
     courseSlug: props.courseSlug,
-    courseSessionId: courseSession.value.id.toString(),
+    courseSessionId: courseSession.value.id,
   },
 });
 
diff --git a/client/src/pages/competence/CompetenceCertificateListPage.vue b/client/src/pages/competence/CompetenceCertificateListPage.vue
index 7d407425..c4c4157d 100644
--- a/client/src/pages/competence/CompetenceCertificateListPage.vue
+++ b/client/src/pages/competence/CompetenceCertificateListPage.vue
@@ -23,7 +23,7 @@ const certificatesQuery = useQuery({
   query: COMPETENCE_NAVI_CERTIFICATE_QUERY,
   variables: {
     courseSlug: props.courseSlug,
-    courseSessionId: courseSession.value.id.toString(),
+    courseSessionId: courseSession.value.id,
   },
 });
 
diff --git a/client/src/pages/competence/CompetenceIndexPage.vue b/client/src/pages/competence/CompetenceIndexPage.vue
index 54328354..87062ecf 100644
--- a/client/src/pages/competence/CompetenceIndexPage.vue
+++ b/client/src/pages/competence/CompetenceIndexPage.vue
@@ -27,7 +27,7 @@ const certificatesQuery = useQuery({
   query: COMPETENCE_NAVI_CERTIFICATE_QUERY,
   variables: {
     courseSlug: props.courseSlug,
-    courseSessionId: courseSession.value.id.toString(),
+    courseSessionId: courseSession.value.id,
   },
 });
 
diff --git a/client/src/pages/learningPath/circlePage/CirclePage.vue b/client/src/pages/learningPath/circlePage/CirclePage.vue
index 77e0d90d..37ecea11 100644
--- a/client/src/pages/learningPath/circlePage/CirclePage.vue
+++ b/client/src/pages/learningPath/circlePage/CirclePage.vue
@@ -1,6 +1,5 @@
 <script setup lang="ts">
 import { useCircleStore } from "@/stores/circle";
-import { useCourseSessionsStore } from "@/stores/courseSessions";
 import type { CourseSessionUser } from "@/types";
 import { humanizeDuration } from "@/utils/humanizeDuration";
 import sumBy from "lodash/sumBy";
@@ -11,6 +10,7 @@ import CircleDiagram from "./CircleDiagram.vue";
 import CircleOverview from "./CircleOverview.vue";
 import DocumentSection from "./DocumentSection.vue";
 import LearningSequence from "./LearningSequence.vue";
+import { useCourseSessionDetailQuery } from "@/composables";
 
 export interface Props {
   courseSlug: string;
@@ -20,7 +20,8 @@ export interface Props {
 }
 
 const route = useRoute();
-const courseSessionsStore = useCourseSessionsStore();
+const courseSessionDetailResult = useCourseSessionDetailQuery();
+const circleStore = useCircleStore();
 
 const props = withDefaults(defineProps<Props>(), {
   readonly: false,
@@ -29,7 +30,12 @@ const props = withDefaults(defineProps<Props>(), {
 
 log.debug("CirclePage created", props.readonly, props.profileUser);
 
-const circleStore = useCircleStore();
+const circleExperts = computed(() => {
+  if (circleStore.circle) {
+    return courseSessionDetailResult.filterCircleExperts(circleStore.circle.slug);
+  }
+  return [];
+});
 
 const duration = computed(() => {
   if (circleStore.circle) {
@@ -190,10 +196,7 @@ onMounted(async () => {
                         })
                       }}
                     </div>
-                    <div
-                      v-for="expert in courseSessionsStore.circleExperts"
-                      :key="expert.user_id"
-                    >
+                    <div v-for="expert in circleExperts" :key="expert.user_id">
                       <div class="mb-2 mt-2 flex flex-row items-center">
                         <img
                           class="mr-2 h-[45px] rounded-full"
@@ -205,8 +208,8 @@ onMounted(async () => {
                       </div>
                     </div>
                     <a
-                      v-if="courseSessionsStore.circleExperts.length > 0"
-                      :href="'mailto:' + courseSessionsStore.circleExperts[0].email"
+                      v-if="circleExperts.length > 0"
+                      :href="'mailto:' + circleExperts[0].email"
                       class="btn-secondary mt-4 text-xl"
                     >
                       {{ $t("circlePage.contactExpertButton") }}
diff --git a/client/src/pages/learningPath/circlePage/DocumentSection.vue b/client/src/pages/learningPath/circlePage/DocumentSection.vue
index 03f2fa73..c55052e9 100644
--- a/client/src/pages/learningPath/circlePage/DocumentSection.vue
+++ b/client/src/pages/learningPath/circlePage/DocumentSection.vue
@@ -8,28 +8,46 @@
         {{ $t("circlePage.documents.userDescription") }}
       </div>
     </div>
-    <ul
-      v-if="courseSessionsStore.circleDocuments.length"
-      class="mt-8 border-t border-t-gray-500"
-    >
-      <template
-        v-for="learningSequence of courseSessionsStore.circleDocuments"
-        :key="learningSequence.id"
-      >
-        <DocumentListItem
-          v-for="doc of learningSequence.documents"
-          :key="doc.url"
-          :subtitle="learningSequence.title"
-          :doc="doc"
-        />
-      </template>
+    <ul v-if="circleDocuments.length" class="mt-8 border-t border-t-gray-500">
+      <DocumentListItem
+        v-for="doc of circleDocuments"
+        :key="doc.url"
+        :subtitle="doc.learning_sequence.title"
+        :doc="doc"
+      />
     </ul>
   </div>
 </template>
 
 <script setup lang="ts">
-import { useCourseSessionsStore } from "@/stores/courseSessions";
 import DocumentListItem from "@/components/circle/DocumentListItem.vue";
+import { useCurrentCourseSession } from "@/composables";
+import { computed, onMounted, ref } from "vue";
+import { useCircleStore } from "@/stores/circle";
+import type { CircleDocument } from "@/types";
+import { fetchCourseSessionDocuments } from "@/services/files";
 
-const courseSessionsStore = useCourseSessionsStore();
+const courseSession = useCurrentCourseSession();
+const circleStore = useCircleStore();
+
+const circleDocumentsResultData = ref<CircleDocument[]>([]);
+
+async function fetchDocuments() {
+  const result = await fetchCourseSessionDocuments(courseSession.value?.id);
+  if (result.length > 0) {
+    circleDocumentsResultData.value = result;
+  } else {
+    circleDocumentsResultData.value = [];
+  }
+}
+
+const circleDocuments = computed(() => {
+  return circleDocumentsResultData.value.filter(
+    (d) => d.learning_sequence.circle.slug === circleStore.circle?.slug
+  );
+});
+
+onMounted(async () => {
+  await fetchDocuments();
+});
 </script>
diff --git a/client/src/pages/learningPath/learningContentPage/assignment/AssignmentIntroductionView.vue b/client/src/pages/learningPath/learningContentPage/assignment/AssignmentIntroductionView.vue
index 911e0c71..a66b0dea 100644
--- a/client/src/pages/learningPath/learningContentPage/assignment/AssignmentIntroductionView.vue
+++ b/client/src/pages/learningPath/learningContentPage/assignment/AssignmentIntroductionView.vue
@@ -2,19 +2,19 @@
 import DateEmbedding from "@/components/dueDates/DateEmbedding.vue";
 import type { Assignment } from "@/types";
 import { useRouteQuery } from "@vueuse/router";
-import type { Dayjs } from "dayjs";
 import log from "loglevel";
+import dayjs from "dayjs";
 
 interface Props {
   assignment: Assignment;
-  dueDate?: Dayjs;
+  submissionDeadlineStart?: string;
 }
 
 const props = withDefaults(defineProps<Props>(), {
-  dueDate: undefined,
+  submissionDeadlineStart: "",
 });
 
-log.debug("AssignmentIntroductionView created", props.assignment, props.dueDate);
+log.debug("AssignmentIntroductionView created", props.assignment);
 
 const step = useRouteQuery("step");
 </script>
@@ -40,9 +40,10 @@ const step = useRouteQuery("step");
   </ul>
 
   <h3 class="mb-4 mt-8">{{ $t("assignment.dueDateSubmission") }}</h3>
-  <p v-if="props.dueDate?.toString() === 'Invalid Date'" class="text-large">
+
+  <p v-if="submissionDeadlineStart" class="text-large">
     {{ $t("assignment.dueDateIntroduction") }}
-    <DateEmbedding :single-date="dueDate"></DateEmbedding>
+    <DateEmbedding :single-date="dayjs(submissionDeadlineStart)"></DateEmbedding>
   </p>
   <p v-else class="text-large">
     {{ $t("assignment.dueDateNotSet") }}
diff --git a/client/src/pages/learningPath/learningContentPage/assignment/AssignmentSubmissionView.vue b/client/src/pages/learningPath/learningContentPage/assignment/AssignmentSubmissionView.vue
index 1e127da7..d132b180 100644
--- a/client/src/pages/learningPath/learningContentPage/assignment/AssignmentSubmissionView.vue
+++ b/client/src/pages/learningPath/learningContentPage/assignment/AssignmentSubmissionView.vue
@@ -3,34 +3,36 @@ import DateEmbedding from "@/components/dueDates/DateEmbedding.vue";
 import ItButton from "@/components/ui/ItButton.vue";
 import ItCheckbox from "@/components/ui/ItCheckbox.vue";
 import ItSuccessAlert from "@/components/ui/ItSuccessAlert.vue";
-import { useCurrentCourseSession } from "@/composables";
+import { useCourseSessionDetailQuery, useCurrentCourseSession } from "@/composables";
 import { bustItGetCache } from "@/fetchHelpers";
 import { UPSERT_ASSIGNMENT_COMPLETION_MUTATION } from "@/graphql/mutations";
 import AssignmentSubmissionResponses from "@/pages/learningPath/learningContentPage/assignment/AssignmentSubmissionResponses.vue";
-import { useCourseSessionsStore } from "@/stores/courseSessions";
 import { useUserStore } from "@/stores/user";
 import type { Assignment, AssignmentCompletion, AssignmentTask } from "@/types";
 import { useMutation } from "@urql/vue";
-import type { Dayjs } from "dayjs";
 import log from "loglevel";
 import { computed, reactive } from "vue";
 import { useTranslation } from "i18next-vue";
 import eventBus from "@/utils/eventBus";
+import dayjs from "dayjs";
+import { useCircleStore } from "@/stores/circle";
 
 const props = defineProps<{
   assignment: Assignment;
-  learningContentId: number;
+  learningContentId: string;
   assignmentCompletion?: AssignmentCompletion;
-  courseSessionId: number;
-  dueDate: Dayjs;
+  courseSessionId: string;
+  submissionDeadlineStart?: string;
 }>();
 
 const emit = defineEmits<{
   (e: "editTask", task: AssignmentTask): void;
 }>();
 
-const courseSessionsStore = useCourseSessionsStore();
 const courseSession = useCurrentCourseSession();
+const courseSessionDetailResult = useCourseSessionDetailQuery();
+const circleStore = useCircleStore();
+
 const { t } = useTranslation();
 
 const state = reactive({
@@ -38,8 +40,15 @@ const state = reactive({
   confirmPerson: false,
 });
 
+const circleExperts = computed(() => {
+  if (circleStore.circle) {
+    return courseSessionDetailResult.filterCircleExperts(circleStore.circle.slug);
+  }
+  return [];
+});
+
 const circleExpert = computed(() => {
-  return courseSessionsStore.circleExperts[0];
+  return circleExperts.value[0];
 });
 
 const circleExpertName = computed(() => {
@@ -74,9 +83,9 @@ const onEditTask = (task: AssignmentTask) => {
 const onSubmit = async () => {
   try {
     await upsertAssignmentCompletionMutation.executeMutation({
-      assignmentId: props.assignment.id.toString(),
-      courseSessionId: courseSession.value.id.toString(),
-      learningContentId: props.learningContentId.toString(),
+      assignmentId: props.assignment.id,
+      courseSessionId: courseSession.value.id,
+      learningContentId: props.learningContentId,
       completionDataString: JSON.stringify({}),
       completionStatus: "SUBMITTED",
       // eslint-disable-next-line @typescript-eslint/ban-ts-comment
@@ -138,9 +147,11 @@ const onSubmit = async () => {
           {{ $t("assignment.showAssessmentDocument") }}
         </a>
       </div>
-      <p v-if="isCasework" class="pt-6">
+      <p v-if="isCasework && props.submissionDeadlineStart" class="pt-6">
         {{ $t("assignment.dueDateSubmission") }}
-        <DateEmbedding :single-date="dueDate"></DateEmbedding>
+        <DateEmbedding
+          :single-date="dayjs(props.submissionDeadlineStart)"
+        ></DateEmbedding>
       </p>
       <ItButton
         class="mt-6"
diff --git a/client/src/pages/learningPath/learningContentPage/assignment/AssignmentTaskView.vue b/client/src/pages/learningPath/learningContentPage/assignment/AssignmentTaskView.vue
index f698330e..3d25b001 100644
--- a/client/src/pages/learningPath/learningContentPage/assignment/AssignmentTaskView.vue
+++ b/client/src/pages/learningPath/learningContentPage/assignment/AssignmentTaskView.vue
@@ -16,8 +16,8 @@ import log from "loglevel";
 import { computed, reactive } from "vue";
 
 const props = defineProps<{
-  assignmentId: number;
-  learningContentId: number;
+  assignmentId: string;
+  learningContentId: string;
   task: AssignmentTask;
   assignmentCompletion?: AssignmentCompletion;
 }>();
@@ -33,9 +33,9 @@ const upsertAssignmentCompletionMutation = useMutation(
 async function upsertAssignmentCompletion(completion_data: AssignmentCompletionData) {
   try {
     await upsertAssignmentCompletionMutation.executeMutation({
-      assignmentId: props.assignmentId.toString(),
-      courseSessionId: courseSession.value.id.toString(),
-      learningContentId: props.learningContentId.toString(),
+      assignmentId: props.assignmentId,
+      courseSessionId: courseSession.value.id,
+      learningContentId: props.learningContentId,
       completionDataString: JSON.stringify(completion_data),
       completionStatus: "IN_PROGRESS",
       // eslint-disable-next-line @typescript-eslint/ban-ts-comment
diff --git a/client/src/pages/learningPath/learningContentPage/assignment/AssignmentView.vue b/client/src/pages/learningPath/learningContentPage/assignment/AssignmentView.vue
index 392f1fb2..c4f7b27a 100644
--- a/client/src/pages/learningPath/learningContentPage/assignment/AssignmentView.vue
+++ b/client/src/pages/learningPath/learningContentPage/assignment/AssignmentView.vue
@@ -1,26 +1,22 @@
 <script setup lang="ts">
-import { useCurrentCourseSession } from "@/composables";
+import { useCourseSessionDetailQuery, useCurrentCourseSession } from "@/composables";
 import { UPSERT_ASSIGNMENT_COMPLETION_MUTATION } from "@/graphql/mutations";
 import { ASSIGNMENT_COMPLETION_QUERY } from "@/graphql/queries";
 import AssignmentIntroductionView from "@/pages/learningPath/learningContentPage/assignment/AssignmentIntroductionView.vue";
 import AssignmentSubmissionView from "@/pages/learningPath/learningContentPage/assignment/AssignmentSubmissionView.vue";
 import AssignmentTaskView from "@/pages/learningPath/learningContentPage/assignment/AssignmentTaskView.vue";
 import LearningContentMultiLayout from "@/pages/learningPath/learningContentPage/layouts/LearningContentMultiLayout.vue";
-import { useCourseSessionsStore } from "@/stores/courseSessions";
 import { useUserStore } from "@/stores/user";
 import type {
   Assignment,
   AssignmentCompletion,
   AssignmentTask,
-  CourseSessionAssignment,
-  CourseSessionUser,
   LearningContentAssignment,
 } from "@/types";
 import { useMutation, useQuery } from "@urql/vue";
 import { useRouteQuery } from "@vueuse/router";
-import dayjs from "dayjs";
 import * as log from "loglevel";
-import { computed, onMounted, reactive, ref, watchEffect } from "vue";
+import { computed, onMounted, ref, watchEffect } from "vue";
 import { useTranslation } from "i18next-vue";
 import { bustItGetCache } from "@/fetchHelpers";
 import { learningContentTypeData } from "@/utils/typeMaps";
@@ -30,14 +26,6 @@ const { t } = useTranslation();
 const courseSession = useCurrentCourseSession();
 const userStore = useUserStore();
 
-interface State {
-  courseSessionAssignment: CourseSessionAssignment | undefined;
-}
-
-const state: State = reactive({
-  courseSessionAssignment: undefined,
-});
-
 const props = defineProps<{
   learningContent: LearningContentAssignment;
 }>();
@@ -45,17 +33,24 @@ const props = defineProps<{
 const queryResult = useQuery({
   query: ASSIGNMENT_COMPLETION_QUERY,
   variables: {
-    courseSessionId: courseSession.value.id.toString(),
-    assignmentId: props.learningContent.content_assignment_id.toString(),
-    learningContentId: props.learningContent.id.toString(),
+    courseSessionId: courseSession.value.id,
+    assignmentId: props.learningContent.content_assignment_id,
+    learningContentId: props.learningContent.id,
   },
   pause: true,
 });
 
+const courseSessionDetailResult = useCourseSessionDetailQuery();
+
 const upsertAssignmentCompletionMutation = useMutation(
   UPSERT_ASSIGNMENT_COMPLETION_MUTATION
 );
 
+const submissionDeadline = computed(() => {
+  return courseSessionDetailResult.findAssignment(props.learningContent.id)
+    ?.submission_deadline;
+});
+
 // FIXME daniel: `useRouteQuery` from usevue is currently the reason that we have to
 // fix the version of @vueuse/router and @vueuse/core to 10.1.0
 // it fails with version 10.2.0. I have a reminder to check out the situation
@@ -104,10 +99,6 @@ onMounted(async () => {
     props.learningContent
   );
 
-  state.courseSessionAssignment = useCourseSessionsStore().findCourseSessionAssignment(
-    props.learningContent.id
-  );
-
   // create initial `AssignmentCompletion` first, so that it exists and we don't
   // have reactivity problem accessing it.
   await initUpsertAssignmentCompletion();
@@ -120,9 +111,7 @@ const numPages = computed(() => {
 });
 const showPreviousButton = computed(() => stepIndex.value != 0);
 const showNextButton = computed(() => stepIndex.value + 1 < numPages.value);
-const dueDate = computed(() =>
-  dayjs(state.courseSessionAssignment?.submission_deadline_start)
-);
+
 const currentTask = computed(() => {
   if (stepIndex.value > 0 && stepIndex.value <= numTasks.value) {
     return assignment.value?.tasks[stepIndex.value - 1];
@@ -133,9 +122,9 @@ const currentTask = computed(() => {
 const initUpsertAssignmentCompletion = async () => {
   try {
     await upsertAssignmentCompletionMutation.executeMutation({
-      assignmentId: props.learningContent.content_assignment_id.toString(),
-      courseSessionId: courseSession.value.id.toString(),
-      learningContentId: props.learningContent.id.toString(),
+      assignmentId: props.learningContent.content_assignment_id,
+      courseSessionId: courseSession.value.id,
+      learningContentId: props.learningContent.id,
       completionDataString: JSON.stringify({}),
       completionStatus: "IN_PROGRESS",
       // eslint-disable-next-line @typescript-eslint/ban-ts-comment
@@ -194,9 +183,9 @@ const subTitle = computed(() => {
 });
 
 const assignmentUser = computed(() => {
-  return courseSession.value.users.find(
-    (user) => user.user_id === userStore.id
-  ) as CourseSessionUser;
+  return (courseSessionDetailResult.courseSessionDetail.value?.users ?? []).find(
+    (u) => u.user_id === userStore.id
+  );
 });
 </script>
 
@@ -204,7 +193,7 @@ const assignmentUser = computed(() => {
   <div v-if="queryResult.fetching.value"></div>
   <div v-else-if="queryResult.error.value">{{ queryResult.error.value }}</div>
   <div v-else>
-    <div v-if="assignment && assignmentCompletion">
+    <div v-if="assignment && assignmentCompletion && assignmentUser">
       <div class="flex flex-col lg:flex-row">
         <div
           v-if="assignmentCompletion?.completion_status === 'EVALUATION_SUBMITTED'"
@@ -239,8 +228,8 @@ const assignmentUser = computed(() => {
             <div>
               <AssignmentIntroductionView
                 v-if="stepIndex === 0"
-                :due-date="dueDate"
                 :assignment="assignment"
+                :submission-deadline-start="submissionDeadline?.start"
               ></AssignmentIntroductionView>
               <AssignmentTaskView
                 v-else-if="currentTask"
@@ -251,11 +240,11 @@ const assignmentUser = computed(() => {
               ></AssignmentTaskView>
               <AssignmentSubmissionView
                 v-else-if="stepIndex + 1 === numPages"
-                :due-date="dueDate"
                 :assignment="assignment"
                 :assignment-completion="assignmentCompletion"
                 :learning-content-id="props.learningContent.id"
                 :course-session-id="courseSession.id"
+                :submission-deadline-start="submissionDeadline?.start"
                 @edit-task="jumpToTask($event)"
               ></AssignmentSubmissionView>
             </div>
diff --git a/client/src/pages/learningPath/learningContentPage/attendanceCourse/AttendanceCourse.vue b/client/src/pages/learningPath/learningContentPage/attendanceCourse/AttendanceCourse.vue
index 84d09904..83ae00db 100644
--- a/client/src/pages/learningPath/learningContentPage/attendanceCourse/AttendanceCourse.vue
+++ b/client/src/pages/learningPath/learningContentPage/attendanceCourse/AttendanceCourse.vue
@@ -3,7 +3,12 @@
     <it-icon-calendar-light class="w-[60px] grid-in-icon" />
     <h2 class="text-large font-bold grid-in-title">{{ $t("a.Datum") }}</h2>
     <p class="grid-in-value">
-      {{ formatDueDate(props.attendanceCourse.start, props.attendanceCourse.end) }}
+      {{
+        formatDueDate(
+          props.attendanceCourse.due_date.start,
+          props.attendanceCourse.due_date.end
+        )
+      }}
     </p>
   </div>
   <div class="mb-12 grid grid-cols-icon-card gap-x-4 grid-areas-icon-card">
@@ -24,8 +29,6 @@
 <script setup lang="ts">
 import { formatDueDate } from "@/components/dueDates/dueDatesUtils";
 import type { CourseSessionAttendanceCourse } from "@/types";
-import dayjs from "dayjs";
-import LocalizedFormat from "dayjs/plugin/localizedFormat";
 import { computed } from "vue";
 
 export interface Props {
@@ -34,7 +37,6 @@ export interface Props {
 
 const props = defineProps<Props>();
 
-dayjs.extend(LocalizedFormat);
 const location = computed(() => props.attendanceCourse.location);
 const trainer = computed(() => props.attendanceCourse.trainer);
 </script>
diff --git a/client/src/pages/learningPath/learningContentPage/blocks/AttendanceCourseBlock.vue b/client/src/pages/learningPath/learningContentPage/blocks/AttendanceCourseBlock.vue
index a13b41d4..1b960955 100644
--- a/client/src/pages/learningPath/learningContentPage/blocks/AttendanceCourseBlock.vue
+++ b/client/src/pages/learningPath/learningContentPage/blocks/AttendanceCourseBlock.vue
@@ -1,18 +1,18 @@
 <script setup lang="ts">
 import AttendanceCourse from "@/pages/learningPath/learningContentPage/attendanceCourse/AttendanceCourse.vue";
-import { useCourseSessionsStore } from "@/stores/courseSessions";
 import type { LearningContentAttendanceCourse } from "@/types";
 import { computed } from "vue";
 import LearningContentSimpleLayout from "../layouts/LearningContentSimpleLayout.vue";
-
-const courseSessionsStore = useCourseSessionsStore();
+import { useCourseSessionDetailQuery } from "@/composables";
 
 const props = defineProps<{
   content: LearningContentAttendanceCourse;
 }>();
 
+const courseSessionDetailResult = useCourseSessionDetailQuery();
+
 const courseSessionAttendanceCourse = computed(() => {
-  return courseSessionsStore.findAttendanceCourse(props.content.id);
+  return courseSessionDetailResult.findAttendanceCourse(props.content.id);
 });
 </script>
 
diff --git a/client/src/pages/learningPath/learningContentPage/blocks/EdoniqTestBlock.vue b/client/src/pages/learningPath/learningContentPage/blocks/EdoniqTestBlock.vue
index 1cb19b05..bebace92 100644
--- a/client/src/pages/learningPath/learningContentPage/blocks/EdoniqTestBlock.vue
+++ b/client/src/pages/learningPath/learningContentPage/blocks/EdoniqTestBlock.vue
@@ -8,8 +8,7 @@ import * as log from "loglevel";
 import { itPost } from "@/fetchHelpers";
 import { useQuery } from "@urql/vue";
 import { ASSIGNMENT_COMPLETION_QUERY } from "@/graphql/queries";
-import { useCurrentCourseSession } from "@/composables";
-import { useCourseSessionsStore } from "@/stores/courseSessions";
+import { useCourseSessionDetailQuery, useCurrentCourseSession } from "@/composables";
 import dayjs from "dayjs";
 import ItSuccessAlert from "@/components/ui/ItSuccessAlert.vue";
 import {
@@ -24,18 +23,18 @@ const props = defineProps<{
 }>();
 
 const courseSession = useCurrentCourseSession();
-const courseSessionsStore = useCourseSessionsStore();
+const courseSessionDetailResult = useCourseSessionDetailQuery();
 
 const courseSessionEdoniqTest = computed(() => {
-  return courseSessionsStore.findCourseSessionEdoniqTest(props.content.id);
+  return courseSessionDetailResult.findEdoniqTest(props.content.id);
 });
 
 const queryResult = useQuery({
   query: ASSIGNMENT_COMPLETION_QUERY,
   variables: {
-    courseSessionId: courseSession.value.id.toString(),
-    assignmentId: props.content.content_assignment_id.toString(),
-    learningContentId: props.content.id.toString(),
+    courseSessionId: courseSession.value.id,
+    assignmentId: props.content.content_assignment_id,
+    learningContentId: props.content.id,
   },
 });
 
@@ -53,7 +52,7 @@ const extendedTimeTest = ref(false);
 
 const deadlineInPast = computed(() => {
   // with 16 minutes buffer
-  return dayjs(courseSessionEdoniqTest.value?.deadline_start)
+  return dayjs(courseSessionEdoniqTest.value?.deadline.start)
     .add(16, "minute")
     .isBefore(dayjs());
 });
@@ -90,7 +89,7 @@ async function startTest() {
         <p class="mt-2 text-lg">
           {{
             $t("edoniqTest.submitDateDescription", {
-              x: formatDueDate(courseSessionEdoniqTest.deadline_start),
+              x: formatDueDate(courseSessionEdoniqTest.deadline.start),
             })
           }}
         </p>
@@ -158,7 +157,7 @@ async function startTest() {
             </div>
             <div v-else>
               {{ $t("a.Abgabetermin") }}:
-              {{ getDateString(dayjs(courseSessionEdoniqTest?.deadline_start)) }}
+              {{ getDateString(dayjs(courseSessionEdoniqTest?.deadline.start)) }}
             </div>
           </div>
         </div>
diff --git a/client/src/pages/learningPath/learningContentPage/feedback/FeedbackBlock.vue b/client/src/pages/learningPath/learningContentPage/feedback/FeedbackBlock.vue
index 4ddb9bcc..b8f599f2 100644
--- a/client/src/pages/learningPath/learningContentPage/feedback/FeedbackBlock.vue
+++ b/client/src/pages/learningPath/learningContentPage/feedback/FeedbackBlock.vue
@@ -10,21 +10,21 @@ import {
 } from "@/pages/learningPath/learningContentPage/feedback/feedback.constants";
 import LearningContentMultiLayout from "@/pages/learningPath/learningContentPage/layouts/LearningContentMultiLayout.vue";
 import { useCircleStore } from "@/stores/circle";
-import { useCourseSessionsStore } from "@/stores/courseSessions";
 import type { LearningContentFeedback } from "@/types";
 import { useMutation } from "@urql/vue";
 import { useRouteQuery } from "@vueuse/router";
 import log from "loglevel";
 import { computed, onMounted, reactive, ref } from "vue";
 import { useTranslation } from "i18next-vue";
-import { useCurrentCourseSession } from "@/composables";
+import { useCourseSessionDetailQuery, useCurrentCourseSession } from "@/composables";
 
 const props = defineProps<{
   content: LearningContentFeedback;
 }>();
-const courseSessionsStore = useCourseSessionsStore();
 const courseSession = useCurrentCourseSession();
 const circleStore = useCircleStore();
+const courseSessionDetailResult = useCourseSessionDetailQuery();
+
 const { t } = useTranslation();
 
 const stepNo = useRouteQuery("step", "0", { transform: Number, mode: "push" });
@@ -33,6 +33,13 @@ const title = computed(
   () => `«${circleStore.circle?.title}»: ${t("feedback.areYouSatisfied")}`
 );
 
+const circleExperts = computed(() => {
+  if (circleStore.circle) {
+    return courseSessionDetailResult.filterCircleExperts(circleStore.circle.slug);
+  }
+  return [];
+});
+
 const stepLabels = [
   t("general.introduction"),
   t("feedback.satisfactionLabel"),
@@ -185,8 +192,8 @@ function hasStepValidInput(stepNumber: number) {
 function mutateFeedback(data: FeedbackData, submit = false) {
   log.debug("mutate feedback", feedbackData);
   return executeMutation({
-    courseSessionId: courseSession.value.id.toString(),
-    learningContentId: props.content.id.toString(),
+    courseSessionId: courseSession.value.id,
+    learningContentId: props.content.id,
     data: data,
     submitted: submit,
   })
@@ -244,7 +251,7 @@ onMounted(async () => {
       <p v-if="stepNo === 0" class="mt-10">
         {{
           $t("feedback.intro", {
-            name: `${courseSessionsStore.circleExperts[0]?.first_name} ${courseSessionsStore.circleExperts[0]?.last_name}`,
+            name: `${circleExperts[0]?.first_name} ${circleExperts[0]?.last_name}`,
           })
         }}
       </p>
@@ -265,10 +272,10 @@ onMounted(async () => {
       </div>
       <FeedbackCompletition
         v-if="stepNo === 11"
-        :avatar-url="courseSessionsStore.circleExperts[0].avatar_url"
+        :avatar-url="circleExperts[0].avatar_url"
         :title="
           $t('feedback.completionTitle', {
-            name: `${courseSessionsStore.circleExperts[0].first_name} ${courseSessionsStore.circleExperts[0].last_name}`,
+            name: `${circleExperts[0].first_name} ${circleExperts[0].last_name}`,
           })
         "
         :description="$t('feedback.completionDescription')"
diff --git a/client/src/pages/learningPath/selfEvaluationPage/SelfEvaluation.vue b/client/src/pages/learningPath/selfEvaluationPage/SelfEvaluation.vue
index f47d1486..3208173e 100644
--- a/client/src/pages/learningPath/selfEvaluationPage/SelfEvaluation.vue
+++ b/client/src/pages/learningPath/selfEvaluationPage/SelfEvaluation.vue
@@ -11,6 +11,7 @@ import eventBus from "@/utils/eventBus";
 import { useRouteQuery } from "@vueuse/router";
 import { computed, onUnmounted } from "vue";
 import { getPreviousRoute } from "@/router/history";
+import { getCompetenceNaviUrl } from "@/utils/utils";
 
 log.debug("LearningContent.vue setup");
 
@@ -127,7 +128,7 @@ onUnmounted(() => {
             <div class="mt-6 lg:mt-12">
               {{ $t("selfEvaluation.progressText") }}
               <router-link
-                :to="courseSession.competence_url"
+                :to="getCompetenceNaviUrl(courseSession.course.slug)"
                 class="text-primary-500 underline"
               >
                 {{ $t("selfEvaluation.progressLink") }}
diff --git a/client/src/services/assignmentService.ts b/client/src/services/assignmentService.ts
index dc6bb4da..c9d96a90 100644
--- a/client/src/services/assignmentService.ts
+++ b/client/src/services/assignmentService.ts
@@ -1,9 +1,6 @@
+import { useCourseSessionDetailQuery } from "@/composables";
 import { itGet } from "@/fetchHelpers";
 import type { LearningPath } from "@/services/learningPath";
-import { useCockpitStore } from "@/stores/cockpit";
-import { useCourseSessionsStore } from "@/stores/courseSessions";
-import { useLearningPathStore } from "@/stores/learningPath";
-import { useUserStore } from "@/stores/user";
 import type {
   Assignment,
   AssignmentCompletion,
@@ -31,23 +28,21 @@ export function calcLearningContentAssignments(learningPath?: LearningPath) {
 }
 
 export async function loadAssignmentCompletionStatusData(
-  assignmentId: number,
-  courseSessionId: number,
-  learningContentId: number
+  assignmentId: string,
+  courseSessionId: string,
+  learningContentId: string
 ) {
-  const cockpitStore = useCockpitStore();
+  const courseSessionDetailResult = useCourseSessionDetailQuery();
 
   const assignmentCompletionData = (await itGet(
     `/api/assignment/${assignmentId}/${courseSessionId}/status/`
   )) as UserAssignmentCompletionStatus[];
 
-  const courseSessionUsers = await cockpitStore.loadCourseSessionMembers(
-    courseSessionId
-  );
+  const members = courseSessionDetailResult.filterMembers();
 
   const gradedUsers: GradedUser[] = [];
   const assignmentSubmittedUsers: CourseSessionUser[] = [];
-  for (const csu of courseSessionUsers) {
+  for (const csu of members) {
     const userAssignmentStatus = assignmentCompletionData.find(
       (s) =>
         s.assignment_user_id === csu.user_id &&
@@ -70,34 +65,10 @@ export async function loadAssignmentCompletionStatusData(
   return {
     assignmentSubmittedUsers: assignmentSubmittedUsers,
     gradedUsers: gradedUsers,
-    total: courseSessionUsers.length,
+    total: members.length,
   };
 }
 
-export function findAssignmentDetail(assignmentId: number) {
-  const learningPathStore = useLearningPathStore();
-  const userStore = useUserStore();
-  const courseSessionsStore = useCourseSessionsStore();
-
-  // TODO: filter by selected circle
-  if (!courseSessionsStore.currentCourseSession) {
-    return undefined;
-  }
-
-  const learningContents = calcLearningContentAssignments(
-    learningPathStore.learningPathForUser(
-      courseSessionsStore.currentCourseSession.course.slug,
-      userStore.id
-    )
-  );
-
-  const learningContent = learningContents.find(
-    (lc) => lc.content_assignment_id === assignmentId
-  );
-
-  return courseSessionsStore.findCourseSessionAssignment(learningContent?.id);
-}
-
 export function maxAssignmentPoints(assignment: Assignment) {
   return sum(assignment.evaluation_tasks.map((task) => task.value.max_points));
 }
diff --git a/client/src/services/circle.ts b/client/src/services/circle.ts
index b42dcff7..a5b3c11b 100644
--- a/client/src/services/circle.ts
+++ b/client/src/services/circle.ts
@@ -121,7 +121,7 @@ export class Circle implements WagtailCircle {
   previousCircle?: Circle;
 
   constructor(
-    public readonly id: number,
+    public readonly id: string,
     public readonly slug: string,
     public readonly title: string,
     public readonly translation_key: string,
diff --git a/client/src/services/files.ts b/client/src/services/files.ts
index 726d1bb2..c2ada811 100644
--- a/client/src/services/files.ts
+++ b/client/src/services/files.ts
@@ -1,13 +1,13 @@
-import { itDelete, itFetch, itPost } from "@/fetchHelpers";
+import { bustItGetCache, itDelete, itFetch, itGetCached, itPost } from "@/fetchHelpers";
 import { getCookieValue } from "@/router/guards";
-import type { CircleDocument, DocumentUploadData } from "@/types";
+import type { DocumentUploadData } from "@/types";
 
 type FileData = {
   fields: Record<string, string>;
   url: string;
 };
 
-async function startFileUpload(fileData: DocumentUploadData, courseSessionId: number) {
+async function startFileUpload(fileData: DocumentUploadData, courseSessionId: string) {
   if (fileData === null || fileData.file === null) {
     return null;
   }
@@ -73,8 +73,9 @@ function handleUpload(url: string, options: RequestInit) {
 
 export async function uploadCircleDocument(
   data: DocumentUploadData,
-  courseSessionId: number
-): Promise<CircleDocument> {
+  courseSessionId: string,
+  bustCacheUrlKey = ""
+) {
   if (data.file === null) {
     throw new Error("No file selected");
   }
@@ -82,22 +83,25 @@ export async function uploadCircleDocument(
   const startData = await startFileUpload(data, courseSessionId);
 
   await uploadFile(startData, data.file);
-  const response = await itPost(`/api/core/file/finish/`, {
+  const response = itPost(`/api/core/file/finish/`, {
     file_id: startData.file_id,
   });
 
-  const newDocument: CircleDocument = {
-    id: startData.id,
-    name: data.name,
-    file_name: data.file.name,
-    url: response.url,
-    course_session: courseSessionId,
-    learning_sequence: data.learningSequence.id,
-  };
+  if (bustCacheUrlKey) {
+    bustItGetCache(bustCacheUrlKey);
+  }
 
-  return Promise.resolve(newDocument);
+  return response;
 }
 
-export async function deleteCircleDocument(documentId: string) {
-  return itDelete(`/api/core/document/${documentId}/`);
+export async function deleteCircleDocument(documentId: string, bustCacheUrlKey = "") {
+  const result = itDelete(`/api/core/document/${documentId}/`);
+  if (bustCacheUrlKey) {
+    bustItGetCache(bustCacheUrlKey);
+  }
+  return result;
+}
+
+export async function fetchCourseSessionDocuments(courseSessionId: string) {
+  return itGetCached(`/api/core/document/list/${courseSessionId}/`);
 }
diff --git a/client/src/services/learningPath.ts b/client/src/services/learningPath.ts
index bd4c6bbb..7a905396 100644
--- a/client/src/services/learningPath.ts
+++ b/client/src/services/learningPath.ts
@@ -57,7 +57,7 @@ export class LearningPath implements WagtailLearningPath {
   }
 
   constructor(
-    public readonly id: number,
+    public readonly id: string,
     public readonly slug: string,
     public readonly title: string,
     public readonly translation_key: string,
diff --git a/client/src/stores/__tests__/courseSession.spec.ts b/client/src/stores/__tests__/courseSession.spec.ts
index dec82031..3eb09b7d 100644
--- a/client/src/stores/__tests__/courseSession.spec.ts
+++ b/client/src/stores/__tests__/courseSession.spec.ts
@@ -35,11 +35,11 @@ describe("CourseSession Store", () => {
     };
     courseSessions = [
       {
-        id: 1,
+        id: "1",
         created_at: "2021-05-11T10:00:00.000000Z",
         updated_at: "2023-05-11T10:00:00.000000Z",
         course: {
-          id: 1,
+          id: "1",
           title: "Test Course",
           category_name: "Test Category",
           slug: "test-course",
diff --git a/client/src/stores/cockpit.ts b/client/src/stores/cockpit.ts
index a1f72db0..6c933b32 100644
--- a/client/src/stores/cockpit.ts
+++ b/client/src/stores/cockpit.ts
@@ -1,18 +1,17 @@
-import { itGetCached } from "@/fetchHelpers";
-import type { CourseSessionUser, ExpertSessionUser } from "@/types";
-import log from "loglevel";
-
-import { useCircleStore } from "@/stores/circle";
 import { useLearningPathStore } from "@/stores/learningPath";
 import { useUserStore } from "@/stores/user";
+import type { CircleLight, CourseSessionUser, ExpertSessionUser } from "@/types";
+import log from "loglevel";
 import { defineStore } from "pinia";
 
+type CircleCockpit = CircleLight & {
+  name: string;
+};
+
 export type CockpitStoreState = {
   courseSessionMembers: CourseSessionUser[] | undefined;
-  circles: {
-    id: string;
-    name: string;
-  }[];
+  circles: CircleCockpit[] | undefined;
+  currentCircle: CircleCockpit | undefined;
   currentCourseSlug: string | undefined;
 };
 
@@ -22,77 +21,54 @@ export const useCockpitStore = defineStore({
     return {
       courseSessionMembers: undefined,
       circles: [],
+      currentCircle: undefined,
       currentCourseSlug: undefined,
     } as CockpitStoreState;
   },
   actions: {
-    async loadCircles(courseSlug: string, courseSessionId: number) {
-      log.debug("loadCircles called", courseSlug, courseSessionId);
+    async loadCircles(
+      courseSlug: string,
+      currentCourseSessionUser: CourseSessionUser | undefined
+    ) {
+      log.debug("loadCircles called", courseSlug);
       this.currentCourseSlug = courseSlug;
 
-      const f = await courseCircles(this.currentCourseSlug, courseSessionId);
+      const circles = await courseCircles(
+        this.currentCourseSlug,
+        currentCourseSessionUser
+      );
 
-      this.circles = f.map((c) => {
+      this.circles = circles.map((c) => {
         return {
-          id: c.slug,
+          id: c.id,
+          slug: c.slug,
+          title: c.title,
           name: c.title,
-        };
+        } as const;
       });
 
-      if (this.circles.length > 0) {
-        await this.setCurrentCourseCircle(this.circles[0].id);
+      if (this.circles?.length) {
+        await this.setCurrentCourseCircle(this.circles[0].slug);
       }
     },
     async setCurrentCourseCircle(circleSlug: string) {
-      if (!this.currentCourseSlug) {
-        throw new Error("currentCourseSlug is undefined");
-      }
-      const circleStore = useCircleStore();
-      await circleStore.loadCircle(this.currentCourseSlug, circleSlug);
+      this.currentCircle = this.circles?.find((c) => c.slug === circleSlug);
     },
-    async setCurrentCourseCircleFromEvent(event: { id: string }) {
-      await this.setCurrentCourseCircle(event.id);
-    },
-    async loadCourseSessionMembers(courseSessionId: number, reload = false) {
-      log.debug("loadCourseSessionMembers called");
-      const users = (await itGetCached(
-        `/api/course/sessions/${courseSessionId}/users/`,
-        {
-          reload: reload,
-        }
-      )) as CourseSessionUser[];
-
-      this.courseSessionMembers = users.filter((user) => user.role === "MEMBER");
-      return this.courseSessionMembers;
-    },
-  },
-  getters: {
-    currentCircle: () => {
-      const circleStore = useCircleStore();
-      return circleStore.circle;
-    },
-    selectedCircle: () => {
-      const circleStore = useCircleStore();
-      return {
-        id: circleStore.circle?.id || 0,
-        name: circleStore.circle?.title || "",
-      };
+    async setCurrentCourseCircleFromEvent(event: CircleLight) {
+      await this.setCurrentCourseCircle(event.slug);
     },
   },
 });
 
-async function courseCircles(courseSlug: string, courseSessionId: number) {
+async function courseCircles(
+  courseSlug: string,
+  currentCourseSessionUser: CourseSessionUser | undefined
+) {
   const userStore = useUserStore();
   const userId = userStore.id;
 
-  const users = (await itGetCached(`/api/course/sessions/${courseSessionId}/users/`, {
-    reload: false,
-  })) as CourseSessionUser[];
-
-  // First check if current user is an expert for this course session
-  const currentUser = users.find((user) => user.user_id === userId);
-  if (currentUser && currentUser.role === "EXPERT") {
-    const expert = currentUser as ExpertSessionUser;
+  if (currentCourseSessionUser && currentCourseSessionUser.role === "EXPERT") {
+    const expert = currentCourseSessionUser as ExpertSessionUser;
     return expert.circles;
   }
 
diff --git a/client/src/stores/competence.ts b/client/src/stores/competence.ts
index 4ce74c16..7a99414c 100644
--- a/client/src/stores/competence.ts
+++ b/client/src/stores/competence.ts
@@ -8,7 +8,6 @@ import type {
   CompetenceProfilePage,
   PerformanceCriteria,
 } from "@/types";
-import i18next from "i18next";
 import _ from "lodash";
 import cloneDeep from "lodash/cloneDeep";
 import groupBy from "lodash/groupBy";
@@ -17,9 +16,6 @@ import { defineStore } from "pinia";
 
 export type CompetenceStoreState = {
   competenceProfilePages: Map<string, CompetenceProfilePage>;
-
-  selectedCircle: { id: string; name: string };
-  availableCircles: { id: string; name: string }[];
   circles: CircleLight[];
 };
 
@@ -28,8 +24,6 @@ export const useCompetenceStore = defineStore({
   state: () => {
     return {
       competenceProfilePages: new Map<string, CompetenceProfilePage>(),
-      selectedCircle: { id: "all", name: `Circle: ${i18next.t("Alle")}` },
-      availableCircles: [],
       circles: [],
     } as CompetenceStoreState;
   },
@@ -52,13 +46,7 @@ export const useCompetenceStore = defineStore({
       };
     },
     criteriaByCompetence(competence: CompetencePage) {
-      return competence.children.filter((criteria) => {
-        if (this.selectedCircle.id != "all") {
-          return criteria.circle.translation_key === this.selectedCircle.id;
-        }
-
-        return competence.children;
-      });
+      return competence.children;
     },
     competenceProfilePage(userId: string | undefined = undefined) {
       if (!userId) {
@@ -70,7 +58,7 @@ export const useCompetenceStore = defineStore({
     },
     flatPerformanceCriteria(
       userId: string | undefined = undefined,
-      circleId: number | undefined = undefined
+      circleId: string | undefined = undefined
     ) {
       if (!userId) {
         const userStore = useUserStore();
@@ -88,12 +76,6 @@ export const useCompetenceStore = defineStore({
             ["asc"]
           );
 
-          if (this.selectedCircle.id !== "all") {
-            criteria = criteria.filter(
-              (c) => c.circle.translation_key === this.selectedCircle.id
-            );
-          }
-
           if (circleId) {
             criteria = criteria.filter((c) => circleId === c.circle.id);
           }
@@ -116,12 +98,7 @@ export const useCompetenceStore = defineStore({
         if (competenceProfilePage?.children.length) {
           return _.orderBy(
             competenceProfilePage.children.filter((competence) => {
-              let criteria = competence.children;
-              if (this.selectedCircle.id != "all") {
-                criteria = criteria.filter((criteria) => {
-                  return criteria.circle.translation_key === this.selectedCircle.id;
-                });
-              }
+              const criteria = competence.children;
               return criteria.length > 0;
             }),
             ["competence_id"],
@@ -159,10 +136,6 @@ export const useCompetenceStore = defineStore({
       this.competenceProfilePages.set(userId, cloneDeep(competenceProfilePage));
 
       this.circles = competenceProfilePage.circles;
-      const circles = competenceProfilePage.circles.map((c: CircleLight) => {
-        return { id: c.translation_key, name: `Circle: ${c.title}` };
-      });
-      this.availableCircles = [{ id: "all", name: "Circle: Alle" }, ...circles];
 
       await this.parseCompletionData(userId);
 
diff --git a/client/src/stores/completion.ts b/client/src/stores/completion.ts
index 515d392a..72868026 100644
--- a/client/src/stores/completion.ts
+++ b/client/src/stores/completion.ts
@@ -12,7 +12,7 @@ export const useCompletionStore = defineStore({
   getters: {},
   actions: {
     async loadCourseSessionCompletionData(
-      courseSessionId: number,
+      courseSessionId: string,
       userId: string,
       reload = false
     ) {
@@ -31,7 +31,7 @@ export const useCompletionStore = defineStore({
     async markPage(
       page: BaseCourseWagtailPage,
       userId: string | undefined = undefined,
-      courseSessionId: number | undefined = undefined
+      courseSessionId: string | undefined = undefined
     ) {
       if (!courseSessionId) {
         const courseSessionsStore = useCourseSessionsStore();
diff --git a/client/src/stores/courseSessions.ts b/client/src/stores/courseSessions.ts
index d1a74013..5fb60b13 100644
--- a/client/src/stores/courseSessions.ts
+++ b/client/src/stores/courseSessions.ts
@@ -1,15 +1,5 @@
-import { itGetCached, itPost } from "@/fetchHelpers";
-import { deleteCircleDocument } from "@/services/files";
-import type {
-  CircleDocument,
-  CourseSession,
-  CourseSessionAssignment,
-  CourseSessionAttendanceCourse,
-  CourseSessionEdoniqTest,
-  CourseSessionUser,
-  DueDate,
-  ExpertSessionUser,
-} from "@/types";
+import { itGetCached } from "@/fetchHelpers";
+import type { CourseSession, DueDate } from "@/types";
 import eventBus from "@/utils/eventBus";
 import { useRouteLookups } from "@/utils/route";
 import { useLocalStorage } from "@vueuse/core";
@@ -18,7 +8,6 @@ import uniqBy from "lodash/uniqBy";
 import log from "loglevel";
 import { defineStore } from "pinia";
 import { computed, ref } from "vue";
-import { useCircleStore } from "./circle";
 import { useUserStore } from "./user";
 
 const SELECTED_COURSE_SESSIONS_KEY = "selectedCourseSessionMap";
@@ -39,10 +28,6 @@ export const useCourseSessionsStore = defineStore("courseSessions", () => {
       // TODO: refactor after implementing of Klassenkonzept
       await Promise.all(
         allCourseSessions.value.map(async (cs) => {
-          const users = (await itGetCached(`/api/course/sessions/${cs.id}/users/`, {
-            reload: reload,
-          })) as CourseSessionUser[];
-          cs.users = users;
           sortDueDates(cs.due_dates);
         })
       );
@@ -57,7 +42,7 @@ export const useCourseSessionsStore = defineStore("courseSessions", () => {
 
   const selectedCourseSessionMap = useLocalStorage(
     SELECTED_COURSE_SESSIONS_KEY,
-    new Map<string, number>()
+    new Map<string, string>()
   );
 
   const _currentCourseSlug = ref("");
@@ -99,15 +84,15 @@ export const useCourseSessionsStore = defineStore("courseSessions", () => {
     eventBus.emit("switchedCourseSession", courseSession.id);
   }
 
-  function getCourseSessionById(courseSessionId: number | string) {
+  function getCourseSessionById(courseSessionId: string) {
     return allCourseSessions.value.find((cs) => {
-      return courseSessionId.toString() === cs.id.toString();
+      return courseSessionId === cs.id;
     });
   }
 
-  function switchCourseSessionById(courseSessionId: number | string) {
+  function switchCourseSessionById(courseSessionId: string) {
     const courseSession = allCourseSessions.value.find((cs) => {
-      return courseSessionId.toString() === cs.id.toString();
+      return courseSessionId === cs.id;
     });
     if (courseSession) {
       _switchCourseSession(courseSession);
@@ -161,64 +146,14 @@ export const useCourseSessionsStore = defineStore("courseSessions", () => {
     return Boolean(isCourseExpert && (inLearningPath() || inCompetenceProfile()));
   });
 
-  const circleExperts = computed(() => {
-    const circleStore = useCircleStore();
-    const circleTranslationKey = circleStore.circle?.translation_key;
-
-    if (currentCourseSession.value && circleTranslationKey) {
-      return currentCourseSession.value.users.filter((u) => {
-        if (u.role === "EXPERT") {
-          return (u as ExpertSessionUser).circles
-            .map((c) => c.translation_key)
-            .includes(circleTranslationKey);
-        }
-        return false;
-      }) as ExpertSessionUser[];
-    }
-    return [];
-  });
-
-  const canUploadCircleDocuments = computed(() => {
+  function hasCockpit(courseSession: CourseSession) {
     const userStore = useUserStore();
     return (
-      circleExperts.value.filter((expert) => expert.user_id === userStore.id).length > 0
-    );
-  });
-
-  const circleDocuments = computed(() => {
-    const circleStore = useCircleStore();
-
-    return (
-      circleStore.circle?.learningSequences
-        .map((ls) => ({ id: ls.id, title: ls.title, documents: [] }))
-        .map((ls: { id: number; title: string; documents: CircleDocument[] }) => {
-          if (currentCourseSession.value === undefined) {
-            return ls;
-          }
-
-          for (const document of currentCourseSession.value.documents) {
-            if (document.learning_sequence === ls.id) {
-              ls.documents.push(document);
-            }
-          }
-          return ls;
-        })
-        .filter((ls) => ls.documents.length > 0) || []
-    );
-  });
-
-  function hasCockpit(couseSession: CourseSession) {
-    const userStore = useUserStore();
-    return (
-      userStore.course_session_experts.includes(couseSession.id) ||
+      userStore.course_session_experts.includes(courseSession.id) ||
       userStore.is_superuser
     );
   }
 
-  function addDocument(document: CircleDocument) {
-    currentCourseSession.value?.documents.push(document);
-  }
-
   function allDueDates() {
     const allDueDatesReturn: DueDate[] = [];
 
@@ -243,56 +178,6 @@ export const useCourseSessionsStore = defineStore("courseSessions", () => {
     });
   }
 
-  async function startUpload() {
-    log.debug("loadCourseSessionsData called");
-    allCourseSessions.value = await itPost(`/api/core/file/start`, {
-      file_type: "image/png",
-      file_name: "test.png",
-    });
-  }
-
-  async function removeDocument(documentId: string) {
-    await deleteCircleDocument(documentId);
-
-    if (currentCourseSession.value === undefined) {
-      return;
-    }
-
-    currentCourseSession.value.documents = currentCourseSession.value?.documents.filter(
-      (d) => d.id !== documentId
-    );
-  }
-
-  function findAttendanceCourse(
-    contentId: number
-  ): CourseSessionAttendanceCourse | undefined {
-    if (currentCourseSession.value) {
-      return currentCourseSession.value.attendance_courses.find(
-        (attendanceCourse) => attendanceCourse.learning_content_id === contentId
-      );
-    }
-  }
-
-  function findCourseSessionAssignment(
-    contentId?: number
-  ): CourseSessionAssignment | undefined {
-    if (contentId && currentCourseSession.value) {
-      return currentCourseSession.value.assignments.find(
-        (a) => a.learning_content_id === contentId
-      );
-    }
-  }
-
-  function findCourseSessionEdoniqTest(
-    contentId?: number
-  ): CourseSessionEdoniqTest | undefined {
-    if (contentId && currentCourseSession.value) {
-      return currentCourseSession.value.edoniq_tests.find(
-        (a) => a.learning_content_id === contentId
-      );
-    }
-  }
-
   return {
     uniqueCourseSessionsByCourse,
     allCurrentCourseSessions,
@@ -302,15 +187,6 @@ export const useCourseSessionsStore = defineStore("courseSessions", () => {
     hasCockpit,
     hasCourseSessionPreview,
     currentCourseSessionHasCockpit,
-    canUploadCircleDocuments,
-    circleDocuments,
-    circleExperts,
-    addDocument,
-    startUpload,
-    removeDocument,
-    findAttendanceCourse,
-    findCourseSessionAssignment,
-    findCourseSessionEdoniqTest,
     allDueDates,
 
     // use `useCurrentCourseSession` whenever possible
diff --git a/client/src/stores/user.ts b/client/src/stores/user.ts
index 7c2eee33..3ab6c207 100644
--- a/client/src/stores/user.ts
+++ b/client/src/stores/user.ts
@@ -26,7 +26,7 @@ export type UserState = {
   username: string;
   avatar_url: string;
   is_superuser: boolean;
-  course_session_experts: number[];
+  course_session_experts: string[];
   loggedIn: boolean;
   language: AvailableLanguages;
 };
diff --git a/client/src/types.ts b/client/src/types.ts
index f115ef1c..d8b92282 100644
--- a/client/src/types.ts
+++ b/client/src/types.ts
@@ -7,7 +7,7 @@ export type LoginMethod = "local" | "sso";
 export type CourseCompletionStatus = "UNKNOWN" | "FAIL" | "SUCCESS";
 
 export interface BaseCourseWagtailPage {
-  readonly id: number;
+  readonly id: string;
   readonly title: string;
   readonly slug: string;
   readonly content_type: string;
@@ -18,9 +18,9 @@ export interface BaseCourseWagtailPage {
 }
 
 export interface CircleLight {
-  readonly id: number;
+  readonly id: string;
+  readonly slug: string;
   readonly title: string;
-  readonly translation_key: string;
 }
 
 export type LearningContent =
@@ -52,10 +52,10 @@ export interface LearningContentInterface extends BaseCourseWagtailPage {
 
 export interface LearningContentAssignment extends LearningContentInterface {
   readonly content_type: "learnpath.LearningContentAssignment";
-  readonly content_assignment_id: number;
+  readonly content_assignment_id: string;
   readonly assignment_type: AssignmentType;
   readonly competence_certificate?: {
-    id: number;
+    id: string;
     title: string;
     slug: string;
     content_type: string;
@@ -104,9 +104,9 @@ export interface LearningContentEdoniqTest extends LearningContentInterface {
   readonly content_type: "learnpath.LearningContentEdoniqTest";
   readonly checkbox_text: string;
   readonly has_extended_time_test: boolean;
-  readonly content_assignment_id: number;
+  readonly content_assignment_id: string;
   readonly competence_certificate?: {
-    id: number;
+    id: string;
     title: string;
     slug: string;
     content_type: string;
@@ -191,22 +191,22 @@ export interface CourseCompletion {
   created_at: string;
   updated_at: string;
   readonly user: number;
-  readonly page_id: number;
+  readonly page_id: string;
   readonly page_type: string;
-  readonly course_session_id: number;
+  readonly course_session_id: string;
   completion_status: CourseCompletionStatus;
   additional_json_data: unknown;
 }
 
 export interface Course {
-  id: number;
+  id: string;
   title: string;
   category_name: string;
   slug: string;
 }
 
 export interface CourseCategory {
-  id: number;
+  id: string;
   name: string;
   general: boolean;
 }
@@ -381,7 +381,7 @@ export interface Assignment extends BaseCourseWagtailPage {
   readonly evaluation_tasks: AssignmentEvaluationTask[];
   readonly max_points: number;
   readonly competence_certificate?: {
-    id: number;
+    id: string;
     title: string;
     slug: string;
     content_type: string;
@@ -452,7 +452,7 @@ export interface CircleExpert {
   user_email: string;
   user_first_name: string;
   user_last_name: string;
-  circle_id: number;
+  circle_id: string;
   circle_slug: string;
   circle_translation_key: string;
 }
@@ -462,89 +462,112 @@ export interface CircleDocument {
   name: string;
   file_name: string;
   url: string;
-  course_session: number;
-  learning_sequence: number;
+  learning_sequence: {
+    id: string;
+    title: string;
+    circle: CircleLight;
+  };
 }
 
 export interface CourseSessionAttendanceCourse {
-  id: number;
-  course_session_id: number;
-  learning_content_id: number;
-  start: string;
-  end: string;
+  id: string;
+  due_date: SimpleDueDate;
   location: string;
   trainer: string;
-  due_date_id: number;
   circle_title: string;
+  learning_content: {
+    id: string;
+    title: string;
+    circle: CircleLight;
+  };
 }
 
 export interface CourseSessionAssignment {
-  id: number;
-  course_session_id: number;
-  learning_content_id: number;
-  submission_deadline_id: number;
-  submission_deadline_start: string;
-  evaluation_deadline_id: number;
-  evaluation_deadline_start: string;
+  id: string;
+  submission_deadline: SimpleDueDate;
+  evaluation_deadline: SimpleDueDate;
+  learning_content: {
+    id: string;
+    content_assignment: {
+      id: string;
+      title: string;
+      assignment_type: AssignmentType;
+    };
+  };
 }
 
 export interface CourseSessionEdoniqTest {
   id: number;
-  course_session_id: number;
-  learning_content_id: number;
-  deadline_id: number;
-  deadline_start: string;
+  course_session_id: string;
+  deadline: SimpleDueDate;
+  learning_content: {
+    id: string;
+    content_assignment: {
+      id: string;
+      title: string;
+      assignment_type: AssignmentType;
+    };
+  };
 }
 
 export interface CourseSession {
-  id: number;
+  id: string;
   created_at: string;
   updated_at: string;
   course: Course;
   title: string;
   start_date: string;
   end_date: string;
-  learning_path_url: string;
-  cockpit_url: string;
-  competence_url: string;
-  course_url: string;
-  media_library_url: string;
-  attendance_courses: CourseSessionAttendanceCourse[];
-  assignments: CourseSessionAssignment[];
-  edoniq_tests: CourseSessionEdoniqTest[];
-  documents: CircleDocument[];
-  users: CourseSessionUser[];
   due_dates: DueDate[];
 }
 
 export type Role = "MEMBER" | "EXPERT" | "TUTOR";
 
 export interface CourseSessionUser {
-  session_title: string;
   user_id: string;
   first_name: string;
   last_name: string;
   email: string;
   avatar_url: string;
   role: Role;
+  circles: {
+    id: string;
+    title: string;
+    slug: string;
+    translation_key: string;
+  }[];
 }
 
 export interface ExpertSessionUser extends CourseSessionUser {
   role: "EXPERT";
   circles: {
-    id: number;
+    id: string;
     title: string;
     slug: string;
     translation_key: string;
   }[];
 }
 
+export interface CourseSessionDetail {
+  id: string;
+  title: string;
+  course: {
+    id: string;
+    title: string;
+    slug: string;
+  };
+  assignments: CourseSessionAssignment[];
+  attendance_courses: CourseSessionAttendanceCourse[];
+  edoniq_tests: CourseSessionEdoniqTest[];
+  users: CourseSessionUser[];
+}
+
 // document upload
 export interface DocumentUploadData {
   file: File | null;
   name: string;
   learningSequence: {
-    id: number;
+    id: string;
     name: string;
   };
 }
@@ -614,8 +637,8 @@ export interface AssignmentCompletion {
 }
 
 export type UpsertUserAssignmentCompletion = {
-  assignment_id: number;
-  course_session_id: number;
+  assignment_id: string;
+  course_session_id: string;
   completion_status: AssignmentCompletionStatus;
   completion_data: AssignmentCompletionData;
 };
@@ -632,20 +655,22 @@ export interface UserAssignmentCompletionStatus {
   assignment_user_id: string;
   completion_status: AssignmentCompletionStatus;
   evaluation_points: number | null;
-  learning_content_page_id: number;
+  learning_content_page_id: string;
 }
 
-export type DueDate = {
-  id: number;
+export type SimpleDueDate = {
+  id: string;
   start: string;
-  end: string;
+  end?: string;
+};
+
+export type DueDate = SimpleDueDate & {
   title: string;
   assignment_type_translation_key: string;
   date_type_translation_key: string;
   subtitle: string;
   url: string;
   url_expert: string;
-  course_session: number | null;
-  page: number | null;
+  course_session_id: string;
   circle: CircleLight | null;
 };
diff --git a/client/src/utils/eventBus.ts b/client/src/utils/eventBus.ts
index 280e4a81..99689f1f 100644
--- a/client/src/utils/eventBus.ts
+++ b/client/src/utils/eventBus.ts
@@ -3,7 +3,7 @@ import mitt from "mitt";
 export type MittEvents = {
   // event needed so that the App components do re-render
   // and reload the current course session
-  switchedCourseSession: number;
+  switchedCourseSession: string;
 
   finishedLearningContent: boolean;
 };
diff --git a/client/src/utils/utils.ts b/client/src/utils/utils.ts
index a683c4d7..eb6fa891 100644
--- a/client/src/utils/utils.ts
+++ b/client/src/utils/utils.ts
@@ -1,16 +1,35 @@
-import type { AssignmentType, CourseSession } from "@/types";
+import type { AssignmentType } from "@/types";
 import { useTranslation } from "i18next-vue";
 
 export function assertUnreachable(msg: string): never {
   throw new Error("Didn't expect to get here, " + msg);
 }
 
-export function getCompetenceBaseUrl(courseSession: CourseSession): string {
-  return courseSession.competence_url.replace(
-    // TODO: remove the `competence_url` with url to Navi...
-    "/competences",
-    ""
-  );
+function createCourseUrl(courseSlug: string | undefined, specificSub: string): string {
+  if (!courseSlug) {
+    return "/";
+  }
+
+  if (["learn", "media", "competence", "cockpit"].includes(specificSub)) {
+    return `/course/${courseSlug}/${specificSub}`;
+  }
+  return `/course/${courseSlug}`;
+}
+
+export function getCompetenceNaviUrl(courseSlug: string | undefined): string {
+  return createCourseUrl(courseSlug, "competence");
+}
+
+export function getMediaCenterUrl(courseSlug: string | undefined): string {
+  return createCourseUrl(courseSlug, "media");
+}
+
+export function getLearningPathUrl(courseSlug: string | undefined): string {
+  return createCourseUrl(courseSlug, "learn");
+}
+
+export function getCockpitUrl(courseSlug: string | undefined): string {
+  return createCourseUrl(courseSlug, "cockpit");
 }
 
 export function getAssignmentTypeTitle(assignmentType: AssignmentType): string {
diff --git a/cypress/e2e/navigation.cy.js b/cypress/e2e/navigation.cy.js
index 67ae3eb6..bf8d2600 100644
--- a/cypress/e2e/navigation.cy.js
+++ b/cypress/e2e/navigation.cy.js
@@ -1,10 +1,16 @@
-import {checkNavigationLink, EXPERT_LOGIN, login, PARTICIPANT_LOGIN, visitCoursePage} from "./helpers";
-
-const openMobileNavigation = () => {
-  cy.get('[data-cy="navigation-mobile-menu-button"]').click();
-}
+import {
+  checkNavigationLink,
+  EXPERT_LOGIN,
+  login,
+  PARTICIPANT_LOGIN,
+  visitCoursePage,
+} from "./helpers";
 
 describe("navigation.cy.js", () => {
+  const openMobileNavigation = () => {
+    cy.get('[data-cy="navigation-mobile-menu-button"]').click();
+  };
+
   beforeEach(() => {
     cy.manageCommand("cypress_reset");
   });
@@ -24,7 +30,9 @@ describe("navigation.cy.js", () => {
         checkNavigationLink("navigation-cockpit-link", "cockpit");
         checkNavigationLink("navigation-preview-link", "learn");
 
-        cy.get('[data-cy="navigation-competence-profile-link"]').should("not.exist");
+        cy.get('[data-cy="navigation-competence-profile-link"]').should(
+          "not.exist"
+        );
         cy.get('[data-cy="navigation-learning-path-link"]').should("not.exist");
       });
     });
@@ -60,10 +68,14 @@ describe("navigation.cy.js", () => {
       it("should have correct expert navigation", () => {
         cy.get('[data-cy="navigation-mobile-cockpit-link"]').should("exist");
         cy.get('[data-cy="navigation-mobile-preview-link"]').should("exist");
-        cy.get('[data-cy="navigation-mobile-competence-profile-link"]').should("not.exist");
-        cy.get('[data-cy="navigation-mobile-learning-path-link"]').should("not.exist");
-      })
-    })
+        cy.get('[data-cy="navigation-mobile-competence-profile-link"]').should(
+          "not.exist"
+        );
+        cy.get('[data-cy="navigation-mobile-learning-path-link"]').should(
+          "not.exist"
+        );
+      });
+    });
 
     describe("Participant", () => {
       beforeEach(() => {
@@ -73,12 +85,19 @@ describe("navigation.cy.js", () => {
       });
 
       it("should have correct navigation", () => {
-        cy.get('[data-cy="navigation-mobile-cockpit-link"]').should("not.exist");
-        cy.get('[data-cy="navigation-mobile-preview-link"]').should("not.exist");
-        cy.get('[data-cy="navigation-mobile-competence-profile-link"]').should("exist");
-        cy.get('[data-cy="navigation-mobile-learning-path-link"]').should("exist");
+        cy.get('[data-cy="navigation-mobile-cockpit-link"]').should(
+          "not.exist"
+        );
+        cy.get('[data-cy="navigation-mobile-preview-link"]').should(
+          "not.exist"
+        );
+        cy.get('[data-cy="navigation-mobile-competence-profile-link"]').should(
+          "exist"
+        );
+        cy.get('[data-cy="navigation-mobile-learning-path-link"]').should(
+          "exist"
+        );
       });
     });
-  })
+  });
 });
-
diff --git a/cypress/e2e/preview.cy.js b/cypress/e2e/preview.cy.js
index e1628f3f..e485eef5 100644
--- a/cypress/e2e/preview.cy.js
+++ b/cypress/e2e/preview.cy.js
@@ -1,9 +1,14 @@
-import {checkNavigationLink, login, PARTICIPANT_LOGIN, visitCoursePage} from "./helpers";
+import {
+  checkNavigationLink,
+  login,
+  PARTICIPANT_LOGIN,
+  visitCoursePage,
+} from "./helpers";
 
 describe("preview.cy.js", () => {
   beforeEach(() => {
     cy.manageCommand("cypress_reset");
-  })
+  });
 
   describe("Expert / Trainer", () => {
     beforeEach(() => {
@@ -41,5 +46,5 @@ describe("preview.cy.js", () => {
       visitCoursePage("competence");
       cy.get('[data-cy="course-preview-bar"]').should("not.exist");
     });
-  })
+  });
 });
diff --git a/server/config/urls.py b/server/config/urls.py
index 98bf6f48..44c43545 100644
--- a/server/config/urls.py
+++ b/server/config/urls.py
@@ -31,12 +31,12 @@ from vbv_lernwelt.course.views import (
     document_direct_upload,
     document_upload_finish,
     document_upload_start,
-    get_course_session_users,
     get_course_sessions,
     mark_course_completion_view,
     request_course_completion,
     request_course_completion_for_user,
 )
+from vbv_lernwelt.course_session.views import get_course_session_documents
 from vbv_lernwelt.edoniq_test.views import (
     export_students,
     export_students_and_trainers,
@@ -90,6 +90,10 @@ urlpatterns = [
     path('server/documents/', include(wagtaildocs_urls)),
     path('server/pages/', include(wagtail_urls)),
 
+    # core
+    re_path(r"server/core/icons/$", generate_web_component_icons,
+            name="generate_web_component_icons"),
+
     # user management
     path("sso/", include("vbv_lernwelt.sso.urls")),
     re_path(r'api/core/me/$', me_user_view, name='me_user_view'),
@@ -104,15 +108,11 @@ urlpatterns = [
     re_path(r"api/notify/email_notification_settings/$", email_notification_settings,
             name='email_notification_settings'),
 
-    # core
-    re_path(r"server/core/icons/$", generate_web_component_icons,
-            name="generate_web_component_icons"),
-
     # course
     path(r"api/course/sessions/", get_course_sessions, name="get_course_sessions"),
-    path(r"api/course/sessions/<signed_int:course_session_id>/users/",
-         get_course_session_users,
-         name="get_course_session_users"),
+    # path(r"api/course/sessions/<signed_int:course_session_id>/users/",
+    #      get_course_session_users,
+    #      name="get_course_session_users"),
     path(r"api/course/page/<slug_or_id>/", course_page_api_view,
          name="course_page_api_view"),
     path(r"api/course/completion/mark/", mark_course_completion_view,
@@ -139,6 +139,9 @@ urlpatterns = [
          name='file_upload_finish'),
     path(r"api/core/document/local/<str:file_id>/", document_direct_upload,
          name='file_upload_local'),
+    path(r'api/core/document/list/<str:course_session_id>/',
+         get_course_session_documents,
+         name='get_course_session_documents'),
 
     # feedback
     path(r'api/core/feedback/<str:course_session_id>/summary/',
diff --git a/server/vbv_lernwelt/assignment/views.py b/server/vbv_lernwelt/assignment/views.py
index 974af663..205c1321 100644
--- a/server/vbv_lernwelt/assignment/views.py
+++ b/server/vbv_lernwelt/assignment/views.py
@@ -24,6 +24,12 @@ def request_assignment_completion_status(request, assignment_id, course_session_
             "evaluation_passed",
             "learning_content_page_id",
         )
-        return Response(status=200, data=qs)
+
+        # Convert the learning_content_page_id to a string
+        data = list(qs)  # Evaluate the queryset
+        for item in data:
+            item["learning_content_page_id"] = str(item["learning_content_page_id"])
+
+        return Response(status=200, data=data)
 
     raise PermissionDenied()
diff --git a/server/vbv_lernwelt/core/serializers.py b/server/vbv_lernwelt/core/serializers.py
index f801321c..76363c88 100644
--- a/server/vbv_lernwelt/core/serializers.py
+++ b/server/vbv_lernwelt/core/serializers.py
@@ -40,4 +40,4 @@ class UserSerializer(serializers.ModelSerializer):
             role=CourseSessionUser.Role.EXPERT, user=obj
         )
 
-        return [csu.course_session.id for csu in qs]
+        return [str(csu.course_session.id) for csu in qs]
diff --git a/server/vbv_lernwelt/core/utils.py b/server/vbv_lernwelt/core/utils.py
index e2a012fa..083ed57c 100644
--- a/server/vbv_lernwelt/core/utils.py
+++ b/server/vbv_lernwelt/core/utils.py
@@ -2,6 +2,7 @@ import json
 import re
 
 from django.utils.safestring import mark_safe
+from rest_framework import serializers
 from rest_framework.throttling import UserRateThrottle
 
 
@@ -41,6 +42,11 @@ def get_django_content_type(obj):
     return obj._meta.app_label + "." + type(obj).__name__
 
 
+class StringIDField(serializers.Field):
+    def to_representation(self, value):
+        return str(value)
+
+
 def pretty_print_json(json_string):
     try:
         parsed = json_string
diff --git a/server/vbv_lernwelt/course/graphql/queries.py b/server/vbv_lernwelt/course/graphql/queries.py
index c0473cf1..b9307c81 100644
--- a/server/vbv_lernwelt/course/graphql/queries.py
+++ b/server/vbv_lernwelt/course/graphql/queries.py
@@ -1,15 +1,22 @@
 import graphene
 
-from vbv_lernwelt.course.graphql.types import CourseObjectType
-from vbv_lernwelt.course.models import Course
+from vbv_lernwelt.course.graphql.types import CourseObjectType, CourseSessionObjectType
+from vbv_lernwelt.course.models import Course, CourseSession
 from vbv_lernwelt.course.permissions import has_course_access
 
 
 class CourseQuery(graphene.ObjectType):
-    course = graphene.Field(CourseObjectType, id=graphene.Int())
+    course = graphene.Field(CourseObjectType, id=graphene.ID())
+    course_session = graphene.Field(CourseSessionObjectType, id=graphene.ID())
 
     def resolve_course(root, info, id):
         course = Course.objects.get(pk=id)
         if has_course_access(info.context.user, course):
             return course
         raise PermissionError("You do not have access to this course")
+
+    def resolve_course_session(root, info, id):
+        course_session = CourseSession.objects.get(pk=id)
+        if has_course_access(info.context.user, course_session.course):
+            return course_session
+        raise PermissionError("You do not have access to this course session")
diff --git a/server/vbv_lernwelt/course/graphql/types.py b/server/vbv_lernwelt/course/graphql/types.py
index 39985bae..5059b0f7 100644
--- a/server/vbv_lernwelt/course/graphql/types.py
+++ b/server/vbv_lernwelt/course/graphql/types.py
@@ -2,12 +2,30 @@ from typing import Type
 
 import graphene
 import structlog
+from graphene import ObjectType
 from graphene_django import DjangoObjectType
 from graphql import GraphQLError
 from rest_framework.exceptions import PermissionDenied
 
-from vbv_lernwelt.course.models import Course, CourseBasePage, CoursePage
+from vbv_lernwelt.course.models import (
+    CircleDocument,
+    Course,
+    CourseBasePage,
+    CoursePage,
+    CourseSession,
+    CourseSessionUser,
+)
 from vbv_lernwelt.course.permissions import has_course_access
+from vbv_lernwelt.course_session.graphql.types import (
+    CourseSessionAssignmentObjectType,
+    CourseSessionAttendanceCourseObjectType,
+    CourseSessionEdoniqTestObjectType,
+)
+from vbv_lernwelt.course_session.models import (
+    CourseSessionAssignment,
+    CourseSessionAttendanceCourse,
+    CourseSessionEdoniqTest,
+)
 from vbv_lernwelt.learnpath.graphql.types import LearningPathObjectType
 
 logger = structlog.get_logger(__name__)
@@ -74,3 +92,113 @@ class CourseObjectType(DjangoObjectType):
 
     def resolve_learning_path(self, info):
         return self.get_learning_path()
+
+
+class CourseSessionUserExpertCircleType(ObjectType):
+    id = graphene.ID()
+    title = graphene.String()
+    slug = graphene.String()
+
+
+class CourseSessionUserObjectsType(DjangoObjectType):
+    user_id = graphene.UUID()
+    first_name = graphene.String()
+    last_name = graphene.String()
+    email = graphene.String()
+    avatar_url = graphene.String()
+    role = graphene.String()
+    circles = graphene.List(CourseSessionUserExpertCircleType)
+
+    class Meta:
+        model = CourseSessionUser
+        fields = (
+            "id",
+            "user_id",
+            "first_name",
+            "last_name",
+            "email",
+            "avatar_url",
+            "role",
+        )
+
+    def resolve_user_id(self, info):
+        return self.user.id
+
+    def resolve_first_name(self, info):
+        return self.user.first_name
+
+    def resolve_last_name(self, info):
+        return self.user.last_name
+
+    def resolve_email(self, info):
+        return self.user.email
+
+    def resolve_avatar_url(self, info):
+        return self.user.avatar_url
+
+    def resolve_role(self, info):
+        return self.role
+
+    def resolve_circles(self, info):
+        return self.expert.all().values("id", "title", "slug", "translation_key")
+
+
+class CircleDocumentObjectType(DjangoObjectType):
+    file_name = graphene.String()
+    url = graphene.String()
+
+    class Meta:
+        model = CircleDocument
+        fields = [
+            "id",
+            "name",
+            "file_name",
+            "url",
+            "course_session",
+            "learning_sequence",
+        ]
+
+    def resolve_file_name(self, info):
+        return self.file_name
+
+    def resolve_url(self, info):
+        return self.url
+
+
+class CourseSessionObjectType(DjangoObjectType):
+    attendance_courses = graphene.List(CourseSessionAttendanceCourseObjectType)
+    assignments = graphene.List(CourseSessionAssignmentObjectType)
+    edoniq_tests = graphene.List(CourseSessionEdoniqTestObjectType)
+    documents = graphene.List(CircleDocumentObjectType)
+
+    users = graphene.List(CourseSessionUserObjectsType)
+
+    class Meta:
+        model = CourseSession
+        fields = (
+            "id",
+            "created_at",
+            "updated_at",
+            "course",
+            "title",
+            "start_date",
+            "end_date",
+            "users",
+        )
+
+    def resolve_attendance_courses(self, info):
+        return CourseSessionAttendanceCourse.objects.filter(course_session=self)
+
+    def resolve_assignments(self, info):
+        return CourseSessionAssignment.objects.filter(course_session=self)
+
+    def resolve_edoniq_tests(self, info):
+        return CourseSessionEdoniqTest.objects.filter(course_session=self)
+
+    def resolve_documents(self, info):
+        return CircleDocument.objects.filter(
+            course_session=self, file__upload_finished_at__isnull=False
+        )
+
+    def resolve_users(self, info):
+        return CourseSessionUser.objects.filter(course_session_id=self.id).distinct()
diff --git a/server/vbv_lernwelt/course/models.py b/server/vbv_lernwelt/course/models.py
index a040dc95..a09b5884 100644
--- a/server/vbv_lernwelt/course/models.py
+++ b/server/vbv_lernwelt/course/models.py
@@ -294,21 +294,6 @@ class CourseSessionUser(models.Model):
         ]
         ordering = ["user__last_name", "user__first_name", "user__email"]
 
-    def to_dict(self):
-        return {
-            "session_id": self.course_session.id,
-            "session_title": self.course_session.title,
-            "user_id": self.user.id,
-            "first_name": self.user.first_name,
-            "last_name": self.user.last_name,
-            "email": self.user.email,
-            "avatar_url": self.user.avatar_url,
-            "role": self.role,
-            "circles": self.expert.all().values(
-                "id", "title", "slug", "translation_key"
-            ),
-        }
-
 
 class CircleDocument(models.Model):
     id = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
@@ -322,6 +307,9 @@ class CircleDocument(models.Model):
         "learnpath.LearningSequence", on_delete=models.CASCADE
     )
 
+    def get_circle(self):
+        return self.learning_sequence.get_circle()
+
     @property
     def url(self) -> str:
         return self.file.url
diff --git a/server/vbv_lernwelt/course/serializer_helpers.py b/server/vbv_lernwelt/course/serializer_helpers.py
index a188f7f3..f0cf9116 100644
--- a/server/vbv_lernwelt/course/serializer_helpers.py
+++ b/server/vbv_lernwelt/course/serializer_helpers.py
@@ -4,9 +4,12 @@ from vbv_lernwelt.core.serializer_helpers import (
     get_it_serializer_class,
     ItWagtailBaseSerializer,
 )
+from vbv_lernwelt.core.utils import StringIDField
 
 
 class CourseBaseSerializer(ItWagtailBaseSerializer):
+    id = StringIDField()
+    content_assignment_id = StringIDField()
     course = SerializerMethodField()
     course_category = SerializerMethodField()
     circles = SerializerMethodField()
diff --git a/server/vbv_lernwelt/course/serializers.py b/server/vbv_lernwelt/course/serializers.py
index a1b1ba56..e28ed024 100644
--- a/server/vbv_lernwelt/course/serializers.py
+++ b/server/vbv_lernwelt/course/serializers.py
@@ -1,5 +1,6 @@
 from rest_framework import serializers
 
+from vbv_lernwelt.core.utils import StringIDField
 from vbv_lernwelt.course.models import (
     CircleDocument,
     Course,
@@ -7,21 +8,13 @@ from vbv_lernwelt.course.models import (
     CourseCompletion,
     CourseSession,
 )
-from vbv_lernwelt.course_session.models import (
-    CourseSessionAssignment,
-    CourseSessionAttendanceCourse,
-    CourseSessionEdoniqTest,
-)
-from vbv_lernwelt.course_session.serializers import (
-    CourseSessionAssignmentSerializer,
-    CourseSessionAttendanceCourseSerializer,
-    CourseSessionEdoniqTestSerializer,
-)
 from vbv_lernwelt.duedate.models import DueDate
 from vbv_lernwelt.duedate.serializers import DueDateSerializer
 
 
 class CourseSerializer(serializers.ModelSerializer):
+    id = StringIDField()
+
     class Meta:
         model = Course
         fields = ["id", "title", "category_name", "slug"]
@@ -38,6 +31,9 @@ class CourseCategorySerializer(serializers.ModelSerializer):
 
 
 class CourseCompletionSerializer(serializers.ModelSerializer):
+    page_id = StringIDField()
+    course_session_id = StringIDField()
+
     class Meta:
         model = CourseCompletion
         fields = [
@@ -54,56 +50,17 @@ class CourseCompletionSerializer(serializers.ModelSerializer):
 
 
 class CourseSessionSerializer(serializers.ModelSerializer):
+    id = StringIDField()
+
     course = serializers.SerializerMethodField()
-    course_url = serializers.SerializerMethodField()
-    learning_path_url = serializers.SerializerMethodField()
-    cockpit_url = serializers.SerializerMethodField()
-    competence_url = serializers.SerializerMethodField()
-    media_library_url = serializers.SerializerMethodField()
-    documents = serializers.SerializerMethodField()
-    attendance_courses = serializers.SerializerMethodField()
-    assignments = serializers.SerializerMethodField()
-    edoniq_tests = serializers.SerializerMethodField()
+    # course_url = serializers.SerializerMethodField()
     due_dates = serializers.SerializerMethodField()
 
     def get_course(self, obj):
         return CourseSerializer(obj.course).data
 
-    def get_course_url(self, obj):
-        return obj.course.get_course_url()
-
-    def get_learning_path_url(self, obj):
-        return obj.course.get_learning_path_url()
-
-    def get_cockpit_url(self, obj):
-        return obj.course.get_cockpit_url()
-
-    def get_media_library_url(self, obj):
-        return obj.course.get_media_library_url()
-
-    def get_competence_url(self, obj):
-        return obj.course.get_competence_url()
-
-    def get_documents(self, obj):
-        documents = CircleDocument.objects.filter(
-            course_session=obj, file__upload_finished_at__isnull=False
-        )
-        return CircleDocumentSerializer(documents, many=True).data
-
-    def get_attendance_courses(self, obj):
-        return CourseSessionAttendanceCourseSerializer(
-            CourseSessionAttendanceCourse.objects.filter(course_session=obj), many=True
-        ).data
-
-    def get_assignments(self, obj):
-        return CourseSessionAssignmentSerializer(
-            CourseSessionAssignment.objects.filter(course_session=obj), many=True
-        ).data
-
-    def get_edoniq_tests(self, obj):
-        return CourseSessionEdoniqTestSerializer(
-            CourseSessionEdoniqTest.objects.filter(course_session=obj), many=True
-        ).data
+    # def get_course_url(self, obj):
+    #     return obj.course.get_course_url()
 
     def get_due_dates(self, obj):
         due_dates = DueDate.objects.filter(course_session=obj)
@@ -119,21 +76,13 @@ class CourseSessionSerializer(serializers.ModelSerializer):
             "title",
             "start_date",
             "end_date",
-            "additional_json_data",
-            "attendance_courses",
-            "assignments",
-            "edoniq_tests",
-            "learning_path_url",
-            "cockpit_url",
-            "competence_url",
-            "media_library_url",
-            "course_url",
-            "documents",
             "due_dates",
         ]
 
 
 class CircleDocumentSerializer(serializers.ModelSerializer):
+    learning_sequence = serializers.SerializerMethodField()
+
     class Meta:
         model = CircleDocument
         fields = [
@@ -145,6 +94,20 @@ class CircleDocumentSerializer(serializers.ModelSerializer):
             "learning_sequence",
         ]
 
+    def get_learning_sequence(self, obj):
+        ls = obj.learning_sequence
+        circle = ls.get_circle()
+        return {
+            "title": ls.title,
+            "id": str(ls.id),
+            "slug": ls.slug,
+            "circle": {
+                "title": circle.title,
+                "id": str(circle.id),
+                "slug": circle.slug,
+            },
+        }
+
 
 class DocumentUploadStartInputSerializer(serializers.Serializer):
     file_name = serializers.CharField()
diff --git a/server/vbv_lernwelt/course/tests/test_completion_api.py b/server/vbv_lernwelt/course/tests/test_completion_api.py
index 8a81334f..a1a40512 100644
--- a/server/vbv_lernwelt/course/tests/test_completion_api.py
+++ b/server/vbv_lernwelt/course/tests/test_completion_api.py
@@ -48,7 +48,7 @@ class CourseCompletionApiTestCase(APITestCase):
 
         self.assertEqual(response.status_code, 200)
         self.assertEqual(len(response_json), 1)
-        self.assertEqual(response_json[0]["page_id"], learning_content.id)
+        self.assertEqual(response_json[0]["page_id"], str(learning_content.id))
         self.assertEqual(
             response_json[0]["page_type"], "learnpath.LearningContentPlaceholder"
         )
@@ -67,7 +67,7 @@ class CourseCompletionApiTestCase(APITestCase):
 
         self.assertEqual(response.status_code, 200)
         self.assertEqual(len(response_json), 1)
-        self.assertEqual(response_json[0]["page_id"], learning_content.id)
+        self.assertEqual(response_json[0]["page_id"], str(learning_content.id))
         self.assertEqual(
             response_json[0]["page_type"], "learnpath.LearningContentPlaceholder"
         )
@@ -86,7 +86,7 @@ class CourseCompletionApiTestCase(APITestCase):
         response_json = response.json()
         self.assertEqual(response.status_code, 200)
         self.assertEqual(len(response_json), 1)
-        self.assertEqual(response_json[0]["page_id"], learning_content.id)
+        self.assertEqual(response_json[0]["page_id"], str(learning_content.id))
         self.assertEqual(
             response_json[0]["page_type"], "learnpath.LearningContentPlaceholder"
         )
diff --git a/server/vbv_lernwelt/course/tests/test_course_session_api.py b/server/vbv_lernwelt/course/tests/test_course_session_api.py
index 17d3616c..9eaad7dd 100644
--- a/server/vbv_lernwelt/course/tests/test_course_session_api.py
+++ b/server/vbv_lernwelt/course/tests/test_course_session_api.py
@@ -40,7 +40,7 @@ class CourseCompletionApiTestCase(APITestCase):
         self.assertEqual(len(response.json()), 1)
 
         print(json.dumps(response.json(), indent=4))
-        self.assertEqual(response.json()[0]["id"], self.course_session.id)
+        self.assertEqual(response.json()[0]["id"], str(self.course_session.id))
 
     def test_api_superUser_canAccessEveryCourseSession(self):
         self.client.login(username="admin", password="test")
@@ -50,4 +50,4 @@ class CourseCompletionApiTestCase(APITestCase):
         self.assertEqual(len(response.json()), 1)
 
         print(json.dumps(response.json(), indent=4))
-        self.assertEqual(response.json()[0]["id"], self.course_session.id)
+        self.assertEqual(response.json()[0]["id"], str(self.course_session.id))
diff --git a/server/vbv_lernwelt/course/views.py b/server/vbv_lernwelt/course/views.py
index 9a6b511f..3fce8b6b 100644
--- a/server/vbv_lernwelt/course/views.py
+++ b/server/vbv_lernwelt/course/views.py
@@ -6,7 +6,6 @@ from rest_framework.response import Response
 from wagtail.models import Page
 
 from vbv_lernwelt.core.utils import get_django_content_type
-
 from vbv_lernwelt.course.models import (
     CircleDocument,
     CourseCompletion,
@@ -135,7 +134,9 @@ def mark_course_completion_view(request):
 @api_view(["GET"])
 def get_course_sessions(request):
     try:
-        course_sessions = course_sessions_for_user_qs(request.user)
+        course_sessions = course_sessions_for_user_qs(request.user).prefetch_related(
+            "course"
+        )
         return Response(
             status=200, data=CourseSessionSerializer(course_sessions, many=True).data
         )
@@ -146,20 +147,6 @@ def get_course_sessions(request):
         return Response({"error": str(e)}, status=404)
 
 
-@api_view(["GET"])
-def get_course_session_users(request, course_session_id):
-    try:
-        qs = CourseSessionUser.objects.filter(course_session_id=course_session_id)
-
-        user_data = [csu.to_dict() for csu in qs]
-        return Response(status=200, data=user_data)
-    except PermissionDenied as e:
-        raise e
-    except Exception as e:
-        logger.error(e)
-        return Response({"error": str(e)}, status=404)
-
-
 @api_view(["POST"])
 def document_upload_start(request):
     serializer = DocumentUploadStartInputSerializer(data=request.data)
diff --git a/server/vbv_lernwelt/course_session/graphql/mutations.py b/server/vbv_lernwelt/course_session/graphql/mutations.py
index e8bedaac..189817db 100644
--- a/server/vbv_lernwelt/course_session/graphql/mutations.py
+++ b/server/vbv_lernwelt/course_session/graphql/mutations.py
@@ -3,7 +3,9 @@ import structlog
 from rest_framework.exceptions import PermissionDenied
 
 from vbv_lernwelt.course.permissions import has_course_access
-from vbv_lernwelt.course_session.graphql.types import CourseSessionAttendanceCourseType
+from vbv_lernwelt.course_session.graphql.types import (
+    CourseSessionAttendanceCourseObjectType,
+)
 from vbv_lernwelt.course_session.models import CourseSessionAttendanceCourse
 from vbv_lernwelt.course_session.services.attendance import (
     AttendanceUserStatus,
@@ -21,7 +23,9 @@ class AttendanceUserInputType(graphene.InputObjectType):
 
 
 class AttendanceCourseUserMutation(graphene.Mutation):
-    course_session_attendance_course = graphene.Field(CourseSessionAttendanceCourseType)
+    course_session_attendance_course = graphene.Field(
+        CourseSessionAttendanceCourseObjectType
+    )
 
     class Input:
         id = graphene.ID(required=True)
diff --git a/server/vbv_lernwelt/course_session/graphql/queries.py b/server/vbv_lernwelt/course_session/graphql/queries.py
index 66f61994..899cd93a 100644
--- a/server/vbv_lernwelt/course_session/graphql/queries.py
+++ b/server/vbv_lernwelt/course_session/graphql/queries.py
@@ -3,13 +3,15 @@ from rest_framework.exceptions import PermissionDenied
 
 from vbv_lernwelt.course.models import CourseSession
 from vbv_lernwelt.course.permissions import has_course_access, is_course_session_expert
-from vbv_lernwelt.course_session.graphql.types import CourseSessionAttendanceCourseType
+from vbv_lernwelt.course_session.graphql.types import (
+    CourseSessionAttendanceCourseObjectType,
+)
 from vbv_lernwelt.course_session.models import CourseSessionAttendanceCourse
 
 
 class CourseSessionQuery(object):
     course_session_attendance_course = graphene.Field(
-        CourseSessionAttendanceCourseType,
+        CourseSessionAttendanceCourseObjectType,
         id=graphene.ID(required=True),
         assignment_user_id=graphene.ID(required=False),
     )
diff --git a/server/vbv_lernwelt/course_session/graphql/types.py b/server/vbv_lernwelt/course_session/graphql/types.py
index bc1a0f4c..be8e7800 100644
--- a/server/vbv_lernwelt/course_session/graphql/types.py
+++ b/server/vbv_lernwelt/course_session/graphql/types.py
@@ -1,11 +1,22 @@
 import graphene
 from graphene_django import DjangoObjectType
 
-from vbv_lernwelt.course_session.models import CourseSessionAttendanceCourse
+from vbv_lernwelt.course.permissions import is_course_session_expert
+from vbv_lernwelt.course_session.models import (
+    CourseSessionAssignment,
+    CourseSessionAttendanceCourse,
+    CourseSessionEdoniqTest,
+)
 from vbv_lernwelt.course_session.services.attendance import AttendanceUserStatus
+from vbv_lernwelt.duedate.graphql.types import DueDateObjectType
+from vbv_lernwelt.learnpath.graphql.types import (
+    LearningContentAssignmentObjectType,
+    LearningContentAttendanceCourseObjectType,
+    LearningContentEdoniqTestObjectType,
+)
 
 
-class AttendanceUserType(graphene.ObjectType):
+class AttendanceUserObjectType(graphene.ObjectType):
     user_id = graphene.UUID(required=True)
     status = graphene.Field(
         graphene.Enum.from_enum(AttendanceUserStatus), required=True
@@ -15,35 +26,61 @@ class AttendanceUserType(graphene.ObjectType):
     email = graphene.String()
 
 
-class CourseSessionAttendanceCourseType(DjangoObjectType):
+class CourseSessionAttendanceCourseObjectType(DjangoObjectType):
     course_session_id = graphene.ID(source="course_session_id")
     learning_content_id = graphene.ID(source="learning_content_id")
-    due_date_id = graphene.ID(source="due_date_id")
-    end = graphene.DateTime()
-    start = graphene.DateTime()
     attendance_user_list = graphene.List(
-        AttendanceUserType, source="attendance_user_list"
+        AttendanceUserObjectType, source="attendance_user_list"
     )
+    due_date = graphene.Field(DueDateObjectType)
+    learning_content = graphene.Field(LearningContentAttendanceCourseObjectType)
 
     class Meta:
         model = CourseSessionAttendanceCourse
         fields = (
             "id",
             "course_session_id",
-            "learning_content_id",
-            "due_date_id",
+            "learning_content",
             "location",
             "trainer",
-            "start",
-            "end",
+            "due_date",
         )
 
-    def resolve_start(self, info):
-        if self.due_date is None:
-            return None
-        return self.due_date.start
+    def resolve_attendance_user_list(self, info):
+        if is_course_session_expert(info.context.user, self.course_session_id):
+            return self.attendance_user_list
+        return []
 
-    def resolve_end(self, info):
-        if self.due_date is None:
-            return None
-        return self.due_date.end
+
+class CourseSessionAssignmentObjectType(DjangoObjectType):
+    course_session_id = graphene.ID(source="course_session_id")
+    learning_content_id = graphene.ID(source="learning_content_id")
+    submission_deadline = graphene.Field(DueDateObjectType)
+    evaluation_deadline = graphene.Field(DueDateObjectType)
+    learning_content = graphene.Field(LearningContentAssignmentObjectType)
+
+    class Meta:
+        model = CourseSessionAssignment
+        fields = (
+            "id",
+            "course_session_id",
+            "learning_content",
+            "submission_deadline",
+            "evaluation_deadline",
+        )
+
+
+class CourseSessionEdoniqTestObjectType(DjangoObjectType):
+    course_session_id = graphene.ID(source="course_session_id")
+    learning_content_id = graphene.ID(source="learning_content_id")
+    deadline = graphene.Field(DueDateObjectType)
+    learning_content = graphene.Field(LearningContentEdoniqTestObjectType)
+
+    class Meta:
+        model = CourseSessionEdoniqTest
+        fields = (
+            "id",
+            "course_session_id",
+            "learning_content",
+            "deadline",
+        )
diff --git a/server/vbv_lernwelt/course_session/serializers.py b/server/vbv_lernwelt/course_session/serializers.py
index 7bec74a2..8b137891 100644
--- a/server/vbv_lernwelt/course_session/serializers.py
+++ b/server/vbv_lernwelt/course_session/serializers.py
@@ -1,82 +1 @@
-from rest_framework import serializers
 
-from vbv_lernwelt.course_session.models import (
-    CourseSessionAssignment,
-    CourseSessionAttendanceCourse,
-    CourseSessionEdoniqTest,
-)
-
-
-class CourseSessionAttendanceCourseSerializer(serializers.ModelSerializer):
-    start = serializers.SerializerMethodField()
-    end = serializers.SerializerMethodField()
-    circle_title = serializers.SerializerMethodField()
-
-    class Meta:
-        model = CourseSessionAttendanceCourse
-        fields = [
-            "id",
-            "course_session",
-            "learning_content_id",
-            "due_date_id",
-            "location",
-            "trainer",
-            "start",
-            "end",
-            "circle_title",
-        ]
-
-    def get_start(self, obj):
-        return obj.due_date.start
-
-    def get_end(self, obj):
-        return obj.due_date.end
-
-    def get_circle_title(self, obj):
-        circle = obj.get_circle()
-        if circle:
-            return circle.title
-        return ""
-
-
-class CourseSessionAssignmentSerializer(serializers.ModelSerializer):
-    submission_deadline_start = serializers.SerializerMethodField()
-    evaluation_deadline_start = serializers.SerializerMethodField()
-
-    class Meta:
-        model = CourseSessionAssignment
-        fields = [
-            "id",
-            "course_session_id",
-            "learning_content_id",
-            "submission_deadline_id",
-            "submission_deadline_start",
-            "evaluation_deadline_id",
-            "evaluation_deadline_start",
-        ]
-
-    def get_evaluation_deadline_start(self, obj):
-        if obj.evaluation_deadline:
-            return obj.evaluation_deadline.start
-
-    def get_submission_deadline_start(self, obj):
-        if obj.submission_deadline:
-            return obj.submission_deadline.start
-
-
-class CourseSessionEdoniqTestSerializer(serializers.ModelSerializer):
-    deadline_start = serializers.SerializerMethodField()
-
-    class Meta:
-        model = CourseSessionEdoniqTest
-        fields = [
-            "id",
-            "course_session_id",
-            "learning_content_id",
-            "deadline_id",
-            "deadline_start",
-        ]
-
-    def get_deadline_start(self, obj):
-        if obj.deadline:
-            return obj.deadline.start
diff --git a/server/vbv_lernwelt/course_session/views.py b/server/vbv_lernwelt/course_session/views.py
index 91ea44a2..6cf3dbfc 100644
--- a/server/vbv_lernwelt/course_session/views.py
+++ b/server/vbv_lernwelt/course_session/views.py
@@ -1,3 +1,21 @@
-from django.shortcuts import render
+from rest_framework.decorators import api_view
+from rest_framework.exceptions import PermissionDenied
+from rest_framework.response import Response
 
-# Create your views here.
+from vbv_lernwelt.course.models import CircleDocument
+from vbv_lernwelt.course.permissions import has_course_session_access
+from vbv_lernwelt.course.serializers import CircleDocumentSerializer
+
+
+@api_view(["GET"])
+def get_course_session_documents(request, course_session_id):
+    if not has_course_session_access(request.user, course_session_id):
+        raise PermissionDenied()
+
+    circle_documents = CircleDocument.objects.filter(
+        course_session_id=course_session_id
+    )
+
+    return Response(
+        status=200, data=CircleDocumentSerializer(circle_documents, many=True).data
+    )
diff --git a/server/vbv_lernwelt/duedate/graphql/__init__.py b/server/vbv_lernwelt/duedate/graphql/__init__.py
new file mode 100644
index 00000000..e69de29b
diff --git a/server/vbv_lernwelt/duedate/graphql/types.py b/server/vbv_lernwelt/duedate/graphql/types.py
new file mode 100644
index 00000000..172febbd
--- /dev/null
+++ b/server/vbv_lernwelt/duedate/graphql/types.py
@@ -0,0 +1,21 @@
+from graphene_django import DjangoObjectType
+
+from vbv_lernwelt.duedate.models import DueDate
+
+
+class DueDateObjectType(DjangoObjectType):
+    class Meta:
+        model = DueDate
+        fields = (
+            "id",
+            "start",
+            "end",
+            "manual_override_fields",
+            "title",
+            "assignment_type_translation_key",
+            "date_type_translation_key",
+            "subtitle",
+            "url",
+            "course_session",
+            "page",
+        )
diff --git a/server/vbv_lernwelt/duedate/migrations/0006_duedate_circle_data.py b/server/vbv_lernwelt/duedate/migrations/0006_duedate_circle_data.py
new file mode 100644
index 00000000..bda99d6b
--- /dev/null
+++ b/server/vbv_lernwelt/duedate/migrations/0006_duedate_circle_data.py
@@ -0,0 +1,17 @@
+# Generated by Django 3.2.20 on 2023-10-10 13:05
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("duedate", "0005_auto_20230925_1648"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="duedate",
+            name="circle_data",
+            field=models.JSONField(blank=True, default=dict),
+        ),
+    ]
diff --git a/server/vbv_lernwelt/duedate/migrations/0007_auto_20231010_1505.py b/server/vbv_lernwelt/duedate/migrations/0007_auto_20231010_1505.py
new file mode 100644
index 00000000..201a1c44
--- /dev/null
+++ b/server/vbv_lernwelt/duedate/migrations/0007_auto_20231010_1505.py
@@ -0,0 +1,21 @@
+# Generated by Django 3.2.20 on 2023-10-10 13:05
+
+from django.db import migrations
+from django.db.migrations import RunPython
+
+
+def trigger_due_date_save(apps, schema_editor):
+    # need to load concrete model, so that wagtail page has `specific` instance  method...
+    from vbv_lernwelt.duedate.models import DueDate
+
+    for due_date in DueDate.objects.all():
+        # trigger save to prefetch circle data
+        due_date.save()
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("duedate", "0006_duedate_circle_data"),
+    ]
+
+    operations = [RunPython(trigger_due_date_save)]
diff --git a/server/vbv_lernwelt/duedate/models.py b/server/vbv_lernwelt/duedate/models.py
index a5ba2854..14e2f9d6 100644
--- a/server/vbv_lernwelt/duedate/models.py
+++ b/server/vbv_lernwelt/duedate/models.py
@@ -60,6 +60,7 @@ class DueDate(models.Model):
     )
 
     page = models.ForeignKey(Page, on_delete=models.SET_NULL, null=True, blank=True)
+    circle_data = models.JSONField(default=dict, blank=True)
 
     class Meta:
         ordering = ["start", "end"]
@@ -80,6 +81,21 @@ class DueDate(models.Model):
 
         return result
 
+    def save(self, *args, **kwargs):
+        try:
+            circle = self.get_circle()
+            # prefetch circle data, because loading it dynamically is too slow
+            if circle:
+                self.circle_data = {
+                    "id": str(circle.id),
+                    "title": circle.title,
+                    "slug": circle.slug,
+                }
+        except Exception:
+            # noop
+            pass
+        super().save(*args, **kwargs)
+
     @property
     def display_subtitle(self):
         result = ""
diff --git a/server/vbv_lernwelt/duedate/serializers.py b/server/vbv_lernwelt/duedate/serializers.py
index 5529a924..fe11dd74 100644
--- a/server/vbv_lernwelt/duedate/serializers.py
+++ b/server/vbv_lernwelt/duedate/serializers.py
@@ -1,14 +1,18 @@
 from rest_framework import serializers
 
+from vbv_lernwelt.core.utils import StringIDField
 from vbv_lernwelt.duedate.models import DueDate
 
 
 class DueDateSerializer(serializers.ModelSerializer):
+    id = StringIDField()
+    course_session_id = serializers.SerializerMethodField()
     circle = serializers.SerializerMethodField()
 
     class Meta:
         model = DueDate
         fields = [
+            "id",
             "start",
             "end",
             "manual_override_fields",
@@ -18,18 +22,18 @@ class DueDateSerializer(serializers.ModelSerializer):
             "subtitle",
             "url",
             "url_expert",
-            "course_session",
-            "page",
+            "course_session_id",
             "circle",
         ]
 
-    def get_circle(self, obj):
-        circle = obj.get_circle()
+    def get_course_session_id(self, obj):
+        return str(obj.course_session.id)
 
-        if circle:
+    def get_circle(self, obj):
+        if obj.circle_data:
             return {
-                "id": circle.id,
-                "title": circle.title,
-                "translation_key": circle.translation_key,
+                "id": obj.circle_data.get("id"),
+                "title": obj.circle_data.get("title"),
+                "slug": obj.circle_data.get("slug"),
             }
         return None
diff --git a/server/vbv_lernwelt/learnpath/graphql/queries.py b/server/vbv_lernwelt/learnpath/graphql/queries.py
index 00e9faf8..7f68088c 100644
--- a/server/vbv_lernwelt/learnpath/graphql/queries.py
+++ b/server/vbv_lernwelt/learnpath/graphql/queries.py
@@ -6,12 +6,12 @@ from vbv_lernwelt.learnpath.graphql.types import (
     LearningContentAssignmentObjectType,
     LearningContentAttendanceCourseObjectType,
     LearningContentDocumentListObjectType,
+    LearningContentEdoniqTestObjectType,
     LearningContentFeedbackObjectType,
     LearningContentLearningModuleObjectType,
     LearningContentMediaLibraryObjectType,
     LearningContentPlaceholderObjectType,
     LearningContentRichTextObjectType,
-    LearningContentTestObjectType,
     LearningContentVideoObjectType,
     LearningPathObjectType,
 )
@@ -58,7 +58,7 @@ class LearningPathQuery:
     )
     learning_content_placeholder = graphene.Field(LearningContentPlaceholderObjectType)
     learning_content_rich_text = graphene.Field(LearningContentRichTextObjectType)
-    learning_content_test = graphene.Field(LearningContentTestObjectType)
+    learning_content_test = graphene.Field(LearningContentEdoniqTestObjectType)
     learning_content_video = graphene.Field(LearningContentVideoObjectType)
     learning_content_document_list = graphene.Field(
         LearningContentDocumentListObjectType
diff --git a/server/vbv_lernwelt/learnpath/graphql/types.py b/server/vbv_lernwelt/learnpath/graphql/types.py
index c055b4d9..3c568797 100644
--- a/server/vbv_lernwelt/learnpath/graphql/types.py
+++ b/server/vbv_lernwelt/learnpath/graphql/types.py
@@ -47,7 +47,7 @@ class LearningContentInterface(CoursePageInterface):
         elif isinstance(instance, LearningContentRichText):
             return LearningContentRichTextObjectType
         elif isinstance(instance, LearningContentEdoniqTest):
-            return LearningContentTestObjectType
+            return LearningContentEdoniqTestObjectType
         elif isinstance(instance, LearningContentVideo):
             return LearningContentVideoObjectType
         elif isinstance(instance, LearningContentDocumentList):
@@ -102,7 +102,7 @@ class LearningContentMediaLibraryObjectType(DjangoObjectType):
         fields = []
 
 
-class LearningContentTestObjectType(DjangoObjectType):
+class LearningContentEdoniqTestObjectType(DjangoObjectType):
     class Meta:
         model = LearningContentEdoniqTest
         interfaces = (LearningContentInterface,)
diff --git a/server/vbv_lernwelt/learnpath/serializers.py b/server/vbv_lernwelt/learnpath/serializers.py
index 510d697a..3f6a3255 100644
--- a/server/vbv_lernwelt/learnpath/serializers.py
+++ b/server/vbv_lernwelt/learnpath/serializers.py
@@ -64,7 +64,7 @@ class LearningContentEdoniqTestSerializer(
         try:
             cert = obj.content_assignment.competence_certificate
             return {
-                "id": cert.id,
+                "id": str(cert.id),
                 "title": cert.title,
                 "slug": cert.slug,
                 "content_type": get_django_content_type(cert),
@@ -89,7 +89,7 @@ class LearningContentAssignmentSerializer(
         try:
             cert = obj.content_assignment.competence_certificate
             return {
-                "id": cert.id,
+                "id": str(cert.id),
                 "title": cert.title,
                 "slug": cert.slug,
                 "content_type": get_django_content_type(cert),
diff --git a/server/vbv_lernwelt/notify/migrations/0003_truncate_notifications.py b/server/vbv_lernwelt/notify/migrations/0003_truncate_notifications.py
index 8751eb88..4e289876 100644
--- a/server/vbv_lernwelt/notify/migrations/0003_truncate_notifications.py
+++ b/server/vbv_lernwelt/notify/migrations/0003_truncate_notifications.py
@@ -6,7 +6,10 @@ from django.db import migrations
 def init_user_notification_emails(apps=None, schema_editor=None):
     User = apps.get_model("core", "User")
     for u in User.objects.all():
-        u.additional_json_data["email_notification_categories"] = ["NOTIFICATION"]
+        u.additional_json_data["email_notification_categories"] = [
+            "INFORMATION",
+            "USER_INTERACTION",
+        ]
         u.save()