diff --git a/awx/api/views.py b/awx/api/views.py
index dfb57da156..98a04c4626 100644
--- a/awx/api/views.py
+++ b/awx/api/views.py
@@ -2634,24 +2634,9 @@ class InventorySourceUpdateView(RetrieveAPIView):
     is_job_start = True
     new_in_14 = True
 
-    def _update_dependent_project(self, obj, request):
-        if not self.request.user or not self.request.user.can_access(Project, 'start', obj.source_project):
-            raise PermissionDenied(detail=_(
-                'You do not have permission to update project `{}`.'.format(obj.source_project.name)))
-        project_update = obj.source_project.update()
-        if not project_update:
-            return Response({}, status=status.HTTP_400_BAD_REQUEST)
-        else:
-            headers = {'Location': project_update.get_absolute_url(request=request)}
-            return Response(dict(
-                detail=_('Request to update dependent project has been accepted.'), inventory_update=None),
-                status=status.HTTP_202_ACCEPTED, headers=headers)
-
     def post(self, request, *args, **kwargs):
         obj = self.get_object()
         if obj.can_update:
-            if obj.source == 'scm' and obj.update_on_project_update:
-                return self._update_dependent_project(obj, request)
             update = obj.update()
             if not update:
                 return Response({}, status=status.HTTP_400_BAD_REQUEST)
diff --git a/awx/main/tasks.py b/awx/main/tasks.py
index 83af9cb9b4..c94f8d74a1 100644
--- a/awx/main/tasks.py
+++ b/awx/main/tasks.py
@@ -1874,8 +1874,7 @@ class RunInventoryUpdate(BaseTask):
         source_project = None
         if inventory_update.inventory_source:
             source_project = inventory_update.inventory_source.source_project
-        if (inventory_update.source=='scm' and source_project and
-                not inventory_update.inventory_source.update_on_project_update):
+        if (inventory_update.source=='scm' and inventory_update.launch_type=='manual' and source_project):
             request_id = '' if self.request.id is None else self.request.id
             local_project_sync = source_project.create_project_update(
                 launch_type="sync",
diff --git a/awx/main/tests/functional/api/test_inventory.py b/awx/main/tests/functional/api/test_inventory.py
index 8777b3b384..331c6fab7a 100644
--- a/awx/main/tests/functional/api/test_inventory.py
+++ b/awx/main/tests/functional/api/test_inventory.py
@@ -5,7 +5,7 @@ from django.core.exceptions import ValidationError
 
 from awx.api.versioning import reverse
 
-from awx.main.models import InventorySource, Project, ProjectUpdate
+from awx.main.models import InventorySource
 
 
 @pytest.fixture
@@ -248,31 +248,6 @@ def test_inventory_update_access_called(post, inventory_source, alice, mock_acce
         mock_instance.can_start.assert_called_once_with(inventory_source)
 
 
-@pytest.mark.django_db
-class TestUpdateOnProjUpdate:
-
-    def test_no_access_update_denied(self, admin_user, scm_inventory, mock_access, post):
-        inv_src = scm_inventory.inventory_sources.first()
-        with mock_access(Project) as mock_access:
-            mock_access.can_start = mock.MagicMock(return_value=False)
-            r = post(reverse('api:inventory_source_update_view', kwargs={'pk': inv_src.id}),
-                     {}, admin_user, expect=403)
-        assert 'You do not have permission to update project' in r.data['detail']
-
-    def test_no_access_update_allowed(self, admin_user, scm_inventory, mock_access, post):
-        inv_src = scm_inventory.inventory_sources.first()
-        inv_src.source_project.scm_type = 'git'
-        inv_src.source_project.save()
-        with mock.patch('awx.api.views.InventorySourceUpdateView.get_object') as get_object:
-            get_object.return_value = inv_src
-            with mock.patch.object(inv_src.source_project, 'update') as mock_update:
-                mock_update.return_value = ProjectUpdate(pk=48, id=48)
-                r = post(reverse('api:inventory_source_update_view', kwargs={'pk': inv_src.id}),
-                         {}, admin_user, expect=202)
-        assert 'dependent project' in r.data['detail']
-        assert not r.data['inventory_update']
-
-
 @pytest.mark.django_db
 def test_inventory_source_vars_prohibition(post, inventory, admin_user):
     with mock.patch('awx.api.serializers.settings') as mock_settings: