diff --git a/src/ZB.MOM.WW.ScadaBridge.CentralUI/Components/Pages/Deployment/InstanceConfigure.razor b/src/ZB.MOM.WW.ScadaBridge.CentralUI/Components/Pages/Deployment/InstanceConfigure.razor
index 4ce81ea9..582438d4 100644
--- a/src/ZB.MOM.WW.ScadaBridge.CentralUI/Components/Pages/Deployment/InstanceConfigure.razor
+++ b/src/ZB.MOM.WW.ScadaBridge.CentralUI/Components/Pages/Deployment/InstanceConfigure.razor
@@ -973,13 +973,20 @@
                 return;
             }
 
+            var failures = new List<string>();
             foreach (var (attrName, value) in toSave)
             {
                 var result = await InstanceService.SetAttributeOverrideAsync(Id, attrName, value, user);
                 if (result.IsSuccess)
                     _existingOverrides[attrName] = result.Value!;
+                else
+                    failures.Add($"{attrName}: {result.Error}");
             }
-            _toast.ShowSuccess($"Saved {toSave.Count} override(s).");
+            if (failures.Count > 0)
+                _toast.ShowError($"Failed to save {failures.Count} override(s): {string.Join("; ", failures)}");
+            var savedCount = toSave.Count - failures.Count;
+            if (savedCount > 0)
+                _toast.ShowSuccess($"Saved {savedCount} override(s).");
         }
         catch (Exception ex)
         {