diff --git a/client/src/components/circle/LearningSequence.vue b/client/src/components/circle/LearningSequence.vue
index c5993e26..fc62dca5 100644
--- a/client/src/components/circle/LearningSequence.vue
+++ b/client/src/components/circle/LearningSequence.vue
@@ -6,8 +6,10 @@ import ItCheckbox from '@/components/ui/ItCheckbox.vue';
 const props = defineProps(['learningSequence', 'completionData'])
 
 const contentCompleted = (learningContent) => {
-  if (props.completionData?.json_data?.completed_learning_contents) {
-    return learningContent.translation_key in props.completionData.json_data.completed_learning_contents;
+  if (props.completionData?.completed_learning_contents) {
+    return props.completionData.completed_learning_contents.findIndex((e) => {
+      return e.learning_content_key === learningContent.translation_key && e.completed;
+    }) > 0;
   }
 
   return false;
@@ -41,7 +43,7 @@ const contentCompleted = (learningContent) => {
         >
           <ItCheckbox
             :modelValue="contentCompleted(learningContent)"
-            @click="$emit('toggleLearningContentCheckbox', learningContent)"
+            @click="$emit('toggleLearningContentCheckbox', learningContent, !contentCompleted(learningContent))"
           >
             {{ learningContent.contents[0].type }}: {{ learningContent.title }}
           </ItCheckbox>
diff --git a/client/src/views/CircleView.vue b/client/src/views/CircleView.vue
index babf7a2a..12d25dde 100644
--- a/client/src/views/CircleView.vue
+++ b/client/src/views/CircleView.vue
@@ -17,12 +17,13 @@ export default {
     }
   },
   methods: {
-    toggleLearningContentCheckbox(learningContent) {
-      log.debug('toggleLearningContentCheckbox', learningContent);
+    toggleLearningContentCheckbox(learningContent, completed=true) {
+      log.debug('toggleLearningContentCheckbox', learningContent, completed);
       console.log(learningContent);
 
       itPost('/api/completion/complete_learning_content/', {
         learning_content_key: learningContent.translation_key,
+        completed: completed,
       }).then((data) => {
         this.completionData = data;
       });
diff --git a/server/vbv_lernwelt/completion/serializers.py b/server/vbv_lernwelt/completion/serializers.py
index eaa5a4af..9fd3d044 100644
--- a/server/vbv_lernwelt/completion/serializers.py
+++ b/server/vbv_lernwelt/completion/serializers.py
@@ -12,4 +12,7 @@ class UserCircleCompletionSerializer(serializers.ModelSerializer):
 class LearningContentCompletionSerializer(serializers.ModelSerializer):
     class Meta:
         model = LearningContentCompletion
-        fields = ['id', 'created_at', 'updated_at', 'user', 'learning_content_key', 'circle_key', 'json_data']
+        fields = [
+            'id', 'created_at', 'updated_at', 'user', 'learning_content_key', 'circle_key',
+            'completed', 'json_data',
+        ]
diff --git a/server/vbv_lernwelt/completion/tests/test_api.py b/server/vbv_lernwelt/completion/tests/test_api.py
index e257c11b..058956be 100644
--- a/server/vbv_lernwelt/completion/tests/test_api.py
+++ b/server/vbv_lernwelt/completion/tests/test_api.py
@@ -35,7 +35,7 @@ class CompletionApiTestCase(APITestCase):
         self.assertEqual(response.status_code, 200)
         self.assertEqual(response_json['circle_key'], circle_key)
         self.assertEqual(
-            response_json['json_data']['completed_learning_contents'][learning_content_key]['learning_content_key'],
+            response_json['completed_learning_contents'][learning_content_key]['learning_content_key'],
             learning_content_key
         )
 
@@ -47,7 +47,7 @@ class CompletionApiTestCase(APITestCase):
         self.assertEqual(response.status_code, 200)
         self.assertEqual(response_json['circle_key'], circle_key)
         self.assertEqual(
-            response_json['json_data']['completed_learning_contents'][learning_content_key]['learning_content_key'],
+            response_json['completed_learning_contents'][learning_content_key]['learning_content_key'],
             learning_content_key
         )
 
diff --git a/server/vbv_lernwelt/completion/views.py b/server/vbv_lernwelt/completion/views.py
index 98f7b708..77e70cac 100644
--- a/server/vbv_lernwelt/completion/views.py
+++ b/server/vbv_lernwelt/completion/views.py
@@ -1,11 +1,9 @@
-from datetime import datetime
-
 import structlog
 from rest_framework.decorators import api_view
 from rest_framework.response import Response
 
 from vbv_lernwelt.completion.models import LearningContentCompletion, UserCircleCompletion
-from vbv_lernwelt.completion.serializers import UserCircleCompletionSerializer
+from vbv_lernwelt.completion.serializers import UserCircleCompletionSerializer, LearningContentCompletionSerializer
 from vbv_lernwelt.learnpath.models import LearningContent
 
 logger = structlog.get_logger(__name__)
@@ -18,30 +16,44 @@ def request_user_circle_completion(request, circle_key):
         circle_key=circle_key,
     )
 
+    response_data = {}
     if ucc.count() > 0:
-        return Response(status=200, data=UserCircleCompletionSerializer(ucc.first()).data)
-    else:
-        return Response(status=200, data={})
+        response_data = UserCircleCompletionSerializer(ucc.first()).data
+
+    response_data['completed_learning_contents'] = LearningContentCompletionSerializer(
+        LearningContentCompletion.objects.filter(circle_key=circle_key, user=request.user),
+        many=True
+    ).data
+
+    return Response(status=200, data=response_data)
 
 
 @api_view(['POST'])
 def complete_learning_content(request):
     learning_content_key = request.data.get('learning_content_key')
+    completed = request.data.get('completed', True)
     learning_content = LearningContent.objects.get(translation_key=learning_content_key)
 
     circle_key = learning_content.get_parent().translation_key
 
-    LearningContentCompletion.objects.get_or_create(
+    lcc, created = LearningContentCompletion.objects.get_or_create(
         user=request.user,
         learning_content_key=learning_content_key,
         circle_key=circle_key,
     )
+    lcc.completed = completed
+    lcc.save()
 
     ucc, created = UserCircleCompletion.objects.get_or_create(
         user=request.user,
         circle_key=circle_key,
     )
-    ucc.save()
+
+    response_data = UserCircleCompletionSerializer(ucc).data
+    response_data['completed_learning_contents'] = LearningContentCompletionSerializer(
+        LearningContentCompletion.objects.filter(circle_key=circle_key, user=request.user),
+        many=True
+    ).data
 
     logger.debug(
         'learning content completed',
@@ -51,4 +63,4 @@ def complete_learning_content(request):
         user_id=request.user.id,
     )
 
-    return Response(status=200, data=UserCircleCompletionSerializer(ucc).data)
+    return Response(status=200, data=response_data)
diff --git a/tailwind/input.css b/tailwind/input.css
index 4f68bab9..784c99aa 100644
--- a/tailwind/input.css
+++ b/tailwind/input.css
@@ -66,6 +66,5 @@ svg {
     hover:bg-sky-400 hover:border-sky-400
     disabled:opacity-50 disabled:cursor-not-allowed
   }
-
 }