fix: return 200 on embargo failure to prevent downstream error

ecommerce/bff/subscriptions/tests/test_subscription_views.py

@@ -138,6 +138,6 @@ def test_embargo_failure(self, mock_embargo_check):
                                                'user_ip_address': self.ip_address, 'username': self.user.username
                                                })
 
-        self.assertEqual(response.status_code, status.HTTP_400_BAD_REQUEST)
+        self.assertEqual(response.status_code, status.HTTP_200_OK)
         expected_data = {'error': 'User blocked by embargo check', 'error_code': 'embargo_failed'}
         self.assertCountEqual(json.loads(response.content.decode('utf-8')), expected_data)

ecommerce/bff/subscriptions/views.py

@@ -43,7 +43,7 @@ def post(self, request, *args, **kwargs):
                     )
                     return Response({'error': 'User blocked by embargo check',
                                      'error_code': 'embargo_failed'},
-                                    status=status.HTTP_400_BAD_REQUEST)
+                                    status=status.HTTP_200_OK)
 
             for product in available_products:
                 mode = self._mode_for_product(product)