diff --git a/AsbCloudWebApi/Controllers/AnalyticsController.cs b/AsbCloudWebApi/Controllers/AnalyticsController.cs
index d0142912..85414b65 100644
--- a/AsbCloudWebApi/Controllers/AnalyticsController.cs
+++ b/AsbCloudWebApi/Controllers/AnalyticsController.cs
@@ -34,7 +34,7 @@ namespace AsbCloudWebApi.Controllers
             int? idCustomer = User.GetCustomerId();
 
             if (idCustomer is null)
-                return BadRequest();
+                return Forbid();
 
             if (!wellService.CheckWellOwnership((int)idCustomer, wellId))
                 return Forbid();
@@ -59,7 +59,7 @@ namespace AsbCloudWebApi.Controllers
             int? idCustomer = User.GetCustomerId();
 
             if (idCustomer is null)
-                return BadRequest();
+                return Forbid();
 
             if (!wellService.CheckWellOwnership((int)idCustomer, wellId))
                 return Forbid();
@@ -84,7 +84,7 @@ namespace AsbCloudWebApi.Controllers
             int? idCustomer = User.GetCustomerId();
 
             if (idCustomer is null)
-                return BadRequest();
+                return Forbid();
 
             if (!wellService.CheckWellOwnership((int)idCustomer, wellId))
                 return Forbid();
@@ -110,7 +110,7 @@ namespace AsbCloudWebApi.Controllers
             int? idCustomer = User.GetCustomerId();
 
             if (idCustomer is null)
-                return BadRequest();
+                return Forbid();
 
             if (!wellService.CheckWellOwnership((int)idCustomer, wellId))
                 return Forbid();
diff --git a/AsbCloudWebApi/Controllers/DataController.cs b/AsbCloudWebApi/Controllers/DataController.cs
index 1778ff00..5f50a45d 100644
--- a/AsbCloudWebApi/Controllers/DataController.cs
+++ b/AsbCloudWebApi/Controllers/DataController.cs
@@ -52,7 +52,7 @@ namespace AsbCloudWebApi.Controllers
             int? idCustomer = User.GetCustomerId();
 
             if (idCustomer is null)
-                return BadRequest();
+                return Forbid();
 
             bool isCustomerOwnsWell = wellService.CheckWellOwnership((int)idCustomer, wellId);
 
diff --git a/AsbCloudWebApi/Controllers/MessageController.cs b/AsbCloudWebApi/Controllers/MessageController.cs
index 3331eb04..17e3ed56 100644
--- a/AsbCloudWebApi/Controllers/MessageController.cs
+++ b/AsbCloudWebApi/Controllers/MessageController.cs
@@ -52,7 +52,7 @@ namespace AsbCloudWebApi.Controllers
             int? idCustomer = User.GetCustomerId();
 
             if (idCustomer is null)
-                return BadRequest();
+                return Forbid();
 
             bool isCustomerOwnsWell = wellService.CheckWellOwnership((int)idCustomer, wellId);
             
diff --git a/AsbCloudWebApi/Controllers/ReportController.cs b/AsbCloudWebApi/Controllers/ReportController.cs
index 9a8488c6..8dd2ffb7 100644
--- a/AsbCloudWebApi/Controllers/ReportController.cs
+++ b/AsbCloudWebApi/Controllers/ReportController.cs
@@ -63,7 +63,7 @@ namespace AsbCloudWebApi.Controllers
             int? idCustomer = User.GetCustomerId();
 
             if (idCustomer is null)
-                return BadRequest();
+                return Forbid();
 
             if (!wellService.CheckWellOwnership((int)idCustomer, wellId))
                 return Forbid();
@@ -89,7 +89,7 @@ namespace AsbCloudWebApi.Controllers
                 int? idCustomer = User.GetCustomerId();
 
                 if (idCustomer is null)
-                    return BadRequest();
+                    return Forbid();
 
                 if (!wellService.CheckWellOwnership((int)idCustomer, wellId))
                     return Forbid();
@@ -140,7 +140,7 @@ namespace AsbCloudWebApi.Controllers
             int? idCustomer = User.GetCustomerId();
 
             if (idCustomer is null)
-                return BadRequest();
+                return Forbid();
 
             if (!wellService.CheckWellOwnership((int)idCustomer, wellId))
                 return Forbid();
@@ -163,7 +163,7 @@ namespace AsbCloudWebApi.Controllers
             int? idCustomer = User.GetCustomerId();
 
             if (idCustomer is null)
-                return BadRequest();
+                return Forbid();
 
             if (!wellService.CheckWellOwnership((int)idCustomer, wellId))
                 return Forbid();