diff --git a/ee/app/controllers/registrations/groups_controller.rb b/ee/app/controllers/registrations/groups_controller.rb
index b780c38abdd583d73682f617a961a9ebc574a8c8..92dc16428cd86ef2801cf51cb63b1a91776727ac 100644
--- a/ee/app/controllers/registrations/groups_controller.rb
+++ b/ee/app/controllers/registrations/groups_controller.rb
@@ -88,6 +88,9 @@ def track_event(action)
     end
 
     def track_project_registration_submission(project)
+      experiment(:project_templates_during_registration, user: current_user).track(:assignment,
+        namespace: project.namespace)
+
       experiment_project_templates_during_registration(
         project,
         :successfully_submitted_form,
diff --git a/ee/spec/controllers/registrations/groups_controller_spec.rb b/ee/spec/controllers/registrations/groups_controller_spec.rb
index dd88434c79fdf2d892159daad81ecbc8aa7ec3e7..94cb7368e018f08f224c8e5351bc0b82aee19a2f 100644
--- a/ee/spec/controllers/registrations/groups_controller_spec.rb
+++ b/ee/spec/controllers/registrations/groups_controller_spec.rb
@@ -187,6 +187,7 @@
 
         it 'tracks submission event' do
           expect(experiment).to receive(:publish)
+          expect(experiment).to receive(:track).with(:assignment, namespace: an_instance_of(Group))
           expect(experiment).to receive(:track).with(:successfully_submitted_form, label: 'free_registration')
 
           expect(experiment).not_to receive(:track).with(
@@ -202,6 +203,7 @@
 
           it 'tracks submission event' do
             expect(experiment).to receive(:publish)
+            expect(experiment).to receive(:track).with(:assignment, namespace: an_instance_of(Group))
             expect(experiment).to receive(:track).with(:successfully_submitted_form, label: 'free_registration')
 
             expect(experiment).to receive(:track).with(
@@ -220,6 +222,7 @@
 
           it 'tracks submission event' do
             expect(experiment).to receive(:publish)
+            expect(experiment).to receive(:track).with(:assignment, namespace: an_instance_of(Group))
             expect(experiment).to receive(:track).with(:successfully_submitted_form, label: 'trial_registration')
 
             post_create
@@ -259,6 +262,7 @@
 
           it 'does not track submission event' do
             expect(experiment).to receive(:publish)
+            expect(experiment).not_to receive(:track).with(:assignment, namespace: an_instance_of(Group))
             expect(experiment).not_to receive(:track).with(:successfully_submitted_form, label: 'free_registration')
 
             post_create