diff --git a/client/src/components/circle/CircleOverview.vue b/client/src/components/circle/CircleOverview.vue
index 094a1bbd..cf181b89 100644
--- a/client/src/components/circle/CircleOverview.vue
+++ b/client/src/components/circle/CircleOverview.vue
@@ -1,5 +1,5 @@
 <script setup lang="ts">
-import { Circle } from '@/services/circle'
+import type { Circle } from '@/services/circle'
 import ItFullScreenModal from '@/components/ui/ItFullScreenModal.vue'
 
 const props = defineProps<{
diff --git a/client/src/components/circle/LearningSequence.vue b/client/src/components/circle/LearningSequence.vue
index 9c514b0a..e469146a 100644
--- a/client/src/components/circle/LearningSequence.vue
+++ b/client/src/components/circle/LearningSequence.vue
@@ -1,6 +1,6 @@
 <script setup lang="ts">
 import ItCheckbox from '@/components/ui/ItCheckbox.vue'
-import type { LearningContent, LearningSequence } from '@/types'
+import type { CourseCompletionStatus, LearningContent, LearningSequence } from '@/types'
 import { useCircleStore } from '@/stores/circle'
 import { computed } from 'vue'
 import _ from 'lodash'
@@ -14,7 +14,11 @@ const props = defineProps<{
 const circleStore = useCircleStore()
 
 function toggleCompleted(learningContent: LearningContent) {
-  circleStore.markCompletion(learningContent, !learningContent.completed)
+  let completionStatus: CourseCompletionStatus = 'success'
+  if (learningContent.completion_status === 'success') {
+    completionStatus = 'fail'
+  }
+  circleStore.markCompletion(learningContent, completionStatus)
 }
 
 const someFinished = computed(() => {
@@ -36,7 +40,7 @@ const allFinished = computed(() => {
 const continueTranslationKeyTuple = computed(() => {
   if (props.learningSequence && circleStore.circle) {
     const lastFinished = _.findLast(circleStore.circle.flatLearningContents, (learningContent) => {
-      return learningContent.completed
+      return learningContent.completion_status === 'success'
     })
 
     if (!lastFinished) {
@@ -91,7 +95,7 @@ const learningSequenceBorderClass = computed(() => {
           class="flex gap-4 pb-3 lg:pb-6"
         >
           <ItCheckbox
-            :modelValue="learningContent.completed"
+            :modelValue="learningContent.completion_status === 'success'"
             :onToggle="() => toggleCompleted(learningContent)"
             :data-cy="`${learningContent.slug}`"
           >
diff --git a/client/src/components/circle/SelfEvaluation.vue b/client/src/components/circle/SelfEvaluation.vue
index dcb04db0..552e119f 100644
--- a/client/src/components/circle/SelfEvaluation.vue
+++ b/client/src/components/circle/SelfEvaluation.vue
@@ -2,7 +2,7 @@
 import * as log from 'loglevel'
 import { computed, reactive } from 'vue'
 import { useCircleStore } from '@/stores/circle'
-import { LearningUnit } from '@/types'
+import type { LearningUnit } from '@/types'
 
 log.debug('LearningContent.vue setup')
 
@@ -62,24 +62,24 @@ function handleContinue() {
 
         <div class="mt-4 lg:mt-8 flex flex-col lg:flex-row justify-between gap-6">
           <button
-            @click="circleStore.markCompletion(currentQuestion, true)"
+            @click="circleStore.markCompletion(currentQuestion, 'success')"
             class="flex-1 inline-flex items-center text-left p-4 border"
             :class="{
-              'border-green-500': currentQuestion.completed,
-              'border-2': currentQuestion.completed,
-              'border-gray-500': !currentQuestion.completed,
+              'border-green-500': currentQuestion.completion_status === 'success',
+              'border-2': currentQuestion.completion_status === 'success',
+              'border-gray-500': currentQuestion.completion_status !== 'success',
             }"
           >
             <it-icon-smiley-happy class="w-16 h-16 mr-4"></it-icon-smiley-happy>
             <span class="font-bold text-xl"> Ja, ich kann das. </span>
           </button>
           <button
-            @click="circleStore.markCompletion(currentQuestion, false)"
+            @click="circleStore.markCompletion(currentQuestion, 'fail')"
             class="flex-1 inline-flex items-center text-left p-4 border"
             :class="{
-              'border-orange-500': currentQuestion.completed === false,
-              'border-2': currentQuestion.completed === false,
-              'border-gray-500': currentQuestion.completed === true || currentQuestion.completed === undefined,
+              'border-orange-500': currentQuestion.completion_status === 'fail',
+              'border-2': currentQuestion.completion_status === 'fail',
+              'border-gray-500': currentQuestion.completion_status !== 'fail'
             }"
           >
             <it-icon-smiley-thinking class="w-16 h-16 mr-4"></it-icon-smiley-thinking>
diff --git a/client/src/services/circle.ts b/client/src/services/circle.ts
index d1b49001..5b46e33c 100644
--- a/client/src/services/circle.ts
+++ b/client/src/services/circle.ts
@@ -1,13 +1,14 @@
 import type {
   CircleChild,
-  CircleCompletion,
   CircleGoal,
   CircleJobSituation,
+  CourseCompletion,
+  CourseCompletionStatus,
+  CourseWagtailPage,
   LearningContent,
   LearningSequence,
   LearningUnit,
   LearningUnitQuestion,
-  CourseWagtailPage,
 } from '@/types'
 import type { LearningPath } from '@/services/learningPath'
 
@@ -23,6 +24,7 @@ function _createEmptyLearningUnit(parentLearningSequence: LearningSequence): Lea
     parentLearningSequence: parentLearningSequence,
     children: [],
     last: true,
+    completion_status: 'unknown',
   }
 }
 
@@ -112,7 +114,7 @@ export function parseLearningSequences (circle: Circle, children: CircleChild[])
 export class Circle implements CourseWagtailPage {
   readonly type = 'learnpath.Circle';
   readonly learningSequences: LearningSequence[];
-  readonly completed: boolean;
+  completion_status: CourseCompletionStatus = 'unknown'
 
   nextCircle?: Circle;
   previousCircle?: Circle;
@@ -129,7 +131,6 @@ export class Circle implements CourseWagtailPage {
     public readonly parentLearningPath?: LearningPath,
   ) {
     this.learningSequences = parseLearningSequences(this, this.children);
-    this.completed = false;
   }
 
   public static fromJson(json: any, learningPath?: LearningPath): Circle {
@@ -187,7 +188,7 @@ export class Circle implements CourseWagtailPage {
   public someFinishedInLearningSequence(translationKey: string): boolean {
     if (translationKey) {
       return this.flatChildren.filter((lc) => {
-        return lc.completed && lc.parentLearningSequence?.translation_key === translationKey;
+        return lc.completion_status === 'success' && lc.parentLearningSequence?.translation_key === translationKey;
       }).length > 0;
     }
 
@@ -197,7 +198,7 @@ export class Circle implements CourseWagtailPage {
   public allFinishedInLearningSequence(translationKey: string): boolean {
     if (translationKey) {
       const finishedContents =  this.flatChildren.filter((lc) => {
-        return lc.completed && lc.parentLearningSequence?.translation_key === translationKey;
+        return lc.completion_status === 'success' && lc.parentLearningSequence?.translation_key === translationKey;
       }).length;
 
       const totalContents =  this.flatChildren.filter((lc) => {
@@ -209,15 +210,15 @@ export class Circle implements CourseWagtailPage {
     return false;
   }
 
-  public parseCompletionData(completionData: CircleCompletion[]) {
+  public parseCompletionData(completionData: CourseCompletion[]) {
     this.flatChildren.forEach((page) => {
       const pageIndex = completionData.findIndex((e) => {
         return e.page_key === page.translation_key;
       });
       if (pageIndex >= 0) {
-        page.completed = completionData[pageIndex].completed;
+        page.completion_status = completionData[pageIndex].completion_status;
       } else {
-        page.completed = undefined;
+        page.completion_status = 'unknown';
       }
     });
 
diff --git a/client/src/services/learningPath.ts b/client/src/services/learningPath.ts
index 2ef20568..e595dc0d 100644
--- a/client/src/services/learningPath.ts
+++ b/client/src/services/learningPath.ts
@@ -1,11 +1,18 @@
 import * as _ from 'lodash'
 
-import type { CircleCompletion, LearningContent, LearningPathChild, CourseWagtailPage, Topic } from '@/types'
+import type {
+  CourseCompletion,
+  CourseCompletionStatus,
+  CourseWagtailPage,
+  LearningContent,
+  LearningPathChild,
+  Topic,
+} from '@/types'
 import { Circle } from '@/services/circle'
 
-function getLastCompleted(learningPathKey: string, completionData: CircleCompletion[]) {
-  return _.orderBy(completionData, ['updated_at'], 'desc').find((c: CircleCompletion) => {
-    return c.completed && c.learning_path_key === learningPathKey && c.page_type === 'learnpath.LearningContent'
+function getLastCompleted(courseId: number, completionData: CourseCompletion[]) {
+  return _.orderBy(completionData, ['updated_at'], 'desc').find((c: CourseCompletion) => {
+    return c.completion_status === 'success' && c.course === courseId && c.page_type === 'learnpath.LearningContent'
   })
 }
 
@@ -14,9 +21,10 @@ export class LearningPath implements CourseWagtailPage {
   public topics: Topic[]
   public circles: Circle[]
   public nextLearningContent?: LearningContent
+  readonly completion_status: CourseCompletionStatus = 'unknown'
 
-  public static fromJson(json: any, completionData: CircleCompletion[]): LearningPath {
-    return new LearningPath(json.id, json.slug, json.title, json.translation_key, json.children, completionData)
+  public static fromJson(json: any, completionData: CourseCompletion[]): LearningPath {
+    return new LearningPath(json.id, json.slug, json.title, json.translation_key, json.course.id, json.children, completionData)
   }
 
   constructor(
@@ -24,8 +32,9 @@ export class LearningPath implements CourseWagtailPage {
     public readonly slug: string,
     public readonly title: string,
     public readonly translation_key: string,
+    public readonly courseId: number,
     public children: LearningPathChild[],
-    completionData?: any
+    completionData?: CourseCompletion[]
   ) {
     // parse children
     this.topics = []
@@ -42,7 +51,9 @@ export class LearningPath implements CourseWagtailPage {
       }
       if (page.type === 'learnpath.Circle') {
         const circle = Circle.fromJson(page, this)
-        circle.parseCompletionData(completionData)
+        if (completionData) {
+          circle.parseCompletionData(completionData)
+        }
         if (topic) {
           topic.circles.push(circle)
         }
@@ -59,17 +70,21 @@ export class LearningPath implements CourseWagtailPage {
       this.topics.push(topic)
     }
 
-    this.calcNextLearningContent(completionData)
+    if (completionData) {
+      this.calcNextLearningContent(completionData)
+    }
   }
 
-  public calcNextLearningContent(completionData: CircleCompletion[]): void {
+  public calcNextLearningContent(completionData: CourseCompletion[]): void {
     this.nextLearningContent = undefined
 
-    const lastCompletedLearningContent = getLastCompleted(this.translation_key, completionData)
+    const lastCompletedLearningContent = getLastCompleted(this.courseId, completionData)
 
     if (lastCompletedLearningContent) {
       const lastCircle = this.circles.find(
-        (circle) => circle.translation_key === lastCompletedLearningContent.circle_key
+        (circle) => {
+          return circle.flatLearningContents.find((learningContent) => learningContent.translation_key === lastCompletedLearningContent.page_key)
+        }
       )
       if (lastCircle) {
         const lastLearningContent = lastCircle.flatLearningContents.find(
diff --git a/client/src/stores/circle.ts b/client/src/stores/circle.ts
index 9fff1755..41b82367 100644
--- a/client/src/stores/circle.ts
+++ b/client/src/stores/circle.ts
@@ -2,7 +2,7 @@ import * as log from 'loglevel'
 
 import { defineStore } from 'pinia'
 
-import type { LearningContent, LearningUnit, LearningUnitQuestion } from '@/types'
+import type { CourseCompletionStatus, LearningContent, LearningUnit, LearningUnitQuestion } from '@/types'
 import type { Circle } from '@/services/circle'
 import { itPost } from '@/fetchHelpers'
 import { useLearningPathStore } from '@/stores/learningPath'
@@ -61,12 +61,12 @@ export const useCircleStore = defineStore({
 
       return learningUnit
     },
-    async markCompletion(page: LearningContent | LearningUnitQuestion, flag = true) {
+    async markCompletion(page: LearningContent | LearningUnitQuestion, completion_status:CourseCompletionStatus='success') {
       try {
-        page.completed = flag;
-        const completionData = await itPost('/api/completion/circle/mark/', {
+        page.completion_status = completion_status;
+        const completionData = await itPost('/api/course/completion/mark/', {
           page_key: page.translation_key,
-          completed: page.completed,
+          completion_status: page.completion_status,
         });
         if (this.circle) {
           this.circle.parseCompletionData(completionData);
@@ -100,10 +100,10 @@ export const useCircleStore = defineStore({
     },
     calcSelfEvaluationStatus(learningUnit: LearningUnit) {
       if (learningUnit.children.length > 0) {
-        if (learningUnit.children.every((q) => q.completed)) {
+        if (learningUnit.children.every((q) => q.completion_status === 'success')) {
           return true;
         }
-        if (learningUnit.children.some((q) => q.completed !== undefined)) {
+        if (learningUnit.children.some((q) => q.completion_status === 'fail')) {
           return false;
         }
       }
@@ -111,7 +111,7 @@ export const useCircleStore = defineStore({
     },
     continueFromLearningContent(currentLearningContent: LearningContent) {
       if (currentLearningContent) {
-        this.markCompletion(currentLearningContent, true);
+        this.markCompletion(currentLearningContent, 'success');
 
         const nextLearningContent = currentLearningContent.nextLearningContent;
         const currentParent = currentLearningContent.parentLearningUnit;
diff --git a/client/src/stores/learningPath.ts b/client/src/stores/learningPath.ts
index 8d8f9241..d04cfb75 100644
--- a/client/src/stores/learningPath.ts
+++ b/client/src/stores/learningPath.ts
@@ -20,7 +20,7 @@ export const useLearningPathStore = defineStore({
         return this.learningPath;
       }
       const learningPathData = await itGet(`/api/course/page/${slug}/`);
-      const completionData = await itGet(`/api/completion/learning_path/${learningPathData.translation_key}/`);
+      const completionData = await itGet(`/api/course/completion/${learningPathData.course.id}/`);
 
       if (!learningPathData) {
         throw `No learning path found with: ${slug}`;
diff --git a/client/src/types.ts b/client/src/types.ts
index d86d6221..03d68ce4 100644
--- a/client/src/types.ts
+++ b/client/src/types.ts
@@ -1,8 +1,17 @@
 import type { Circle } from '@/services/circle'
 
-export type LearningContentType = 'assignment' | 'book' | 'document' |
-                                  'exercise' | 'media_library' | 'online_training' |
-                                  'resource' | 'test' | 'video';
+export type CourseCompletionStatus = 'unknown' | 'fail' | 'success'
+
+export type LearningContentType =
+  | 'assignment'
+  | 'book'
+  | 'document'
+  | 'exercise'
+  | 'media_library'
+  | 'online_training'
+  | 'resource'
+  | 'test'
+  | 'video'
 
 export interface LearningContentBlock {
   type: LearningContentType
@@ -111,7 +120,7 @@ export interface CourseWagtailPage {
   readonly title: string;
   readonly slug: string;
   readonly translation_key: string;
-  completed?: boolean;
+  completion_status: CourseCompletionStatus;
 }
 
 export interface LearningContent extends CourseWagtailPage {
@@ -163,17 +172,17 @@ export interface Topic extends CourseWagtailPage {
 
 export type LearningPathChild = Topic | WagtailCircle;
 
-export interface CircleCompletion {
+export interface CourseCompletion {
   id: number;
   created_at: string;
   updated_at: string;
   user: number;
   page_key: string;
   page_type: string;
-  circle_key: string;
-  learning_path_key: string;
-  completed: boolean;
-  json_data: any;
+  page_slug: string;
+  course: number;
+  completion_status: CourseCompletionStatus;
+  additional_json_data: any;
 }
 
 export interface CircleDiagramData {
diff --git a/client/src/views/LearningContentView.vue b/client/src/views/LearningContentView.vue
index 17af144b..8def7bc6 100644
--- a/client/src/views/LearningContentView.vue
+++ b/client/src/views/LearningContentView.vue
@@ -4,7 +4,7 @@ import { onMounted, reactive, watch } from 'vue'
 import { useCircleStore } from '@/stores/circle'
 import { useAppStore } from '@/stores/app'
 import LearningContent from '@/components/circle/LearningContent.vue'
-import { LearningContent as LearningContentType } from '@/types'
+import type { LearningContent as LearningContentType } from '@/types'
 
 log.debug('LearningContentView created')
 
diff --git a/server/config/urls.py b/server/config/urls.py
index 3ff38459..e978128c 100644
--- a/server/config/urls.py
+++ b/server/config/urls.py
@@ -50,11 +50,6 @@ urlpatterns = [
     path(r"api/course/completion/mark/", mark_course_completion, name="mark_course_completion"),
     path(r"api/course/completion/<course_id>/", request_course_completion, name="request_course_completion"),
 
-    # completion
-    # path(r"api/completion/circle/<uuid:circle_key>/", request_circle_completion, name="request_circle_completion"),
-    # path(r"api/completion/learning_path/<uuid:learning_path_key>/", request_learning_path_completion, name="request_learning_path_completion"),
-    # path(r"api/completion/circle/mark/", mark_circle_completion, name="mark_circle_completion"),
-
     # testing and debug
     path('server/raise_error/', user_passes_test(lambda u: u.is_superuser, login_url='/login/')(raise_example_error), ),
     path("server/checkratelimit/", check_rate_limit),
diff --git a/server/vbv_lernwelt/learnpath/models.py b/server/vbv_lernwelt/learnpath/models.py
index 131485fe..0944d7a9 100644
--- a/server/vbv_lernwelt/learnpath/models.py
+++ b/server/vbv_lernwelt/learnpath/models.py
@@ -16,8 +16,6 @@ from vbv_lernwelt.learnpath.serializer_helpers import get_it_serializer_class
 
 
 class LearningPath(Page):
-    # PageChooserPanel('related_page', 'demo.PublisherPage'),
-
     content_panels = Page.content_panels
     subpage_types = ['learnpath.Circle', 'learnpath.Topic']
     parent_page_types = ['course.CoursePage']
@@ -35,7 +33,7 @@ class LearningPath(Page):
     @classmethod
     def get_serializer_class(cls):
         return get_it_serializer_class(
-            cls, ['id', 'title', 'slug', 'type', 'translation_key', 'children']
+            cls, ['id', 'title', 'slug', 'type', 'translation_key', 'children', 'course']
         )