diff --git a/REMAN/REMAN/Components/RemnantEdit.razor b/REMAN/REMAN/Components/RemnantEdit.razor
index 4d56f95..9b17609 100644
--- a/REMAN/REMAN/Components/RemnantEdit.razor
+++ b/REMAN/REMAN/Components/RemnantEdit.razor
@@ -41,7 +41,7 @@
                     </div>
                     <div class="row">
                         <div class="col-2">
-                             <div class="input-group">
+                            <div class="input-group">
                                 <div class="input-group-prepend">
                                     <span class="input-group-text">
                                         L mm
@@ -81,7 +81,14 @@
                             </div>
                         </div>
                     </div>
-
+                    @if (!string.IsNullOrEmpty(alertMessage))
+                    {
+                        <div class="row">
+                            <div class="col-12 text-danger">
+                                <span>@alertMessage</span>
+                            </div>
+                        </div>
+                    }
                 </div>
                 <div class="col-12 col-lg-2">
                     <button type="button" class="btn btn-warning btn-block" value="Cancel" @onclick="cancelUpdate">Cancel <i class="fas fa-ban"></i></button>
diff --git a/REMAN/REMAN/Components/RemnantEdit.razor.cs b/REMAN/REMAN/Components/RemnantEdit.razor.cs
index 3483957..9792e30 100644
--- a/REMAN/REMAN/Components/RemnantEdit.razor.cs
+++ b/REMAN/REMAN/Components/RemnantEdit.razor.cs
@@ -23,7 +23,7 @@ namespace REMAN.Components
     {
         private static NLog.Logger Log = LogManager.GetCurrentClassLogger();
 
-    protected RemnantsModel _currItem = new RemnantsModel();
+        protected RemnantsModel _currItem = new RemnantsModel();
 
 
         [Inject]
@@ -69,19 +69,30 @@ namespace REMAN.Components
             //}
         }
 
+        protected string alertMessage = "";
+
         private async Task saveUpdate()
         {
-            if (!await JSRuntime.InvokeAsync<bool>("confirm", "Are you sure to create new record?"))
-                return;
-
-            if (_currItem != null)
+            // verifico duplicato...        
+            bool duplicato = await DataService.RemnantsIsDupl(currItem);
+            if (duplicato)
             {
-                await DataService.RemnantsUpsert(currItem);
-                await DataUpdated.InvokeAsync(0);
+                alertMessage = "Error: dimension data duplicated, record already available.";
             }
             else
             {
-                Console.WriteLine("Record null!");
+                if (!await JSRuntime.InvokeAsync<bool>("confirm", "Are you sure to create new record?"))
+                    return;
+
+                if (_currItem != null)
+                {
+                    await DataService.RemnantsUpsert(currItem);
+                    await DataUpdated.InvokeAsync(0);
+                }
+                else
+                {
+                    Console.WriteLine("Record null!");
+                }
             }
         }
 
diff --git a/REMAN/REMAN/Data/RDataService.cs b/REMAN/REMAN/Data/RDataService.cs
index b39af2a..e0e2e06 100644
--- a/REMAN/REMAN/Data/RDataService.cs
+++ b/REMAN/REMAN/Data/RDataService.cs
@@ -141,6 +141,16 @@ namespace REMAN.Data
             }
             return await Task.FromResult(dbResult);
         }
+        public async Task<bool> RemnantsIsDupl(RemnantsModel currItem)
+        {
+            bool answ = false;
+            var rawList = dbController.RemnantsGetFilt(currItem.MatID, 0);
+            var duplicati = rawList
+                            .Where(x => x.RemnID != currItem.RemnID && x.LMm == currItem.LMm && x.WMm == currItem.WMm && x.TMm == currItem.TMm)
+                            .ToList();
+            answ = duplicati.Count > 0;
+            return await Task.FromResult(answ);
+        }
 
         public async Task<bool> RemnantsUpsert(RemnantsModel currItem)
         {
diff --git a/REMAN/REMAN/Pages/Remnants.razor.cs b/REMAN/REMAN/Pages/Remnants.razor.cs
index 7918ba5..de722bf 100644
--- a/REMAN/REMAN/Pages/Remnants.razor.cs
+++ b/REMAN/REMAN/Pages/Remnants.razor.cs
@@ -125,7 +125,7 @@ namespace REMAN.Pages
                 MatID = selRecord.MatID,
                 DtMod = DateTime.Now,
                 Location = selRecord.Location,
-                QtyAvail = selRecord.QtyAvail,
+                QtyAvail = 0,
                 LMm = selRecord.LMm,
                 TMm = selRecord.TMm,
                 WMm = selRecord.WMm,
@@ -136,15 +136,15 @@ namespace REMAN.Pages
 
         protected async Task addQty(RemnantsModel selRecord)
         {
-            if (!await JSRuntime.InvokeAsync<bool>("confirm", "Confirm qtantity increase?"))
-                return;
+            //if (!await JSRuntime.InvokeAsync<bool>("confirm", "Confirm qtantity increase?"))
+            //    return;
             await DataService.RemnantsMovMag(selRecord, 1);
             await ReloadData();
         }
         protected async Task remQty(RemnantsModel selRecord)
         {
-            if (!await JSRuntime.InvokeAsync<bool>("confirm", "Confirm qtantity decrease?"))
-                return;
+            //if (!await JSRuntime.InvokeAsync<bool>("confirm", "Confirm qtantity decrease?"))
+            //    return;
             await DataService.RemnantsMovMag(selRecord, -1);
             await ReloadData();
         }