diff --git a/protos/dmi/sw_management_service.proto b/protos/dmi/sw_management_service.proto
index 5678cfb..6ced46f 100644
--- a/protos/dmi/sw_management_service.proto
+++ b/protos/dmi/sw_management_service.proto
@@ -114,11 +114,17 @@
         UNDEFINED_REASON = 0;
         UNKNOWN_DEVICE = 1;
         INTERNAL_ERROR = 2;
-        DEVICE_UNREACHABLE = 3;
+        // The DM implementations should have retry mechanisms (timeout values dependant on specific implementations)
+        // and even after those if the operation cannot be completed/reached then return error with reason as DEVICE_NOT_REACHABLE
+        DEVICE_NOT_REACHABLE = 3;
         REMOTE_LOCATION_UNREACHABLE = 4;
         REMOTE_LOCATION_PERMISSION_DENIED = 5;
         ERROR_DURING_UPLOAD = 6;
         DEVICE_BUSY = 7;
+        // wrong location_url in the request
+        ERROR_IN_REQUEST = 8;
+        DEVICE_IN_WRONG_STATE = 9;
+        OPERATION_ALREADY_IN_PROGRESS = 10;
     }
     Reason reason = 4; // reason specifies why the status is ERROR
     string location_url = 5;