diff --git a/service/views.py b/service/views.py
index 2102dd2..8b0016c 100644
--- a/service/views.py
+++ b/service/views.py
@@ -1,4 +1,5 @@
 import json
+import warnings
 from io import BytesIO
 
 import pandas as pd
@@ -6,6 +7,7 @@ from django.core.cache import cache
 from django.db.models import Q
 from django.http import HttpResponse
 from rest_framework import permissions, status
+from rest_framework import status as http_status
 from rest_framework.decorators import action
 from rest_framework.generics import GenericAPIView
 from rest_framework.response import Response
@@ -273,16 +275,13 @@ class PlacementPointViewSet(ReadOnlyModelViewSet):
         return Response(data, status=status.HTTP_200_OK)
 
 
-import warnings
-
-
 class refresh_placement_points(APIView):
     @staticmethod
     def post(request):
         warnings.filterwarnings('ignore')
         file = request.FILES['file']
         load_data(file)
-        return Response(200)
+        return Response(status=http_status.HTTP_200_OK)
 
 
 class load_ao_and_rayons(APIView):
@@ -292,7 +291,7 @@ class load_ao_and_rayons(APIView):
         file_ao = request.FILES['file_ao']
         file_rayon = request.FILES['file_rayon']
         utils.load_ao_and_rayons(file_ao, file_rayon)
-        return Response(200)
+        return Response(status=http_status.HTTP_200_OK)
 
 
 class update_status(APIView):
@@ -308,6 +307,8 @@ class update_status(APIView):
         age = self.request.GET.get('age[]')
         included = self.request.GET.get('included[]')
         excluded = self.request.GET.get('excluded[]')
+        if not new_status:
+            return Response({'message': 'No status provided'}, status=http_status.HTTP_400_BAD_REQUEST)
         if not any([location_ids, prediction, categories, status, delta, fact, age]):
             qs = models.PlacementPoint.objects.none()
         if location_ids:
@@ -339,6 +340,7 @@ class update_status(APIView):
             qs2 = models.PlacementPoint.objects.filter(location_id__in=inclded).all()
             qs = (qs | qs2).distinct()
         if not any([location_ids, prediction, categories, status, delta, fact, age, excluded, included]):
-            return Response(200)
+            return Response({'message': 'Empty queryset'}, status=http_status.HTTP_200_OK)
+
         qs.update(**{'status': new_status})
-        return Response(200)
+        return Response({'message': 'status updated'}, status=http_status.HTTP_200_OK)