diff --git a/NKC_WF/WebUserControls/cmp_batchDetailSplit.ascx b/NKC_WF/WebUserControls/cmp_batchDetailSplit.ascx
index a068457..1836fcf 100644
--- a/NKC_WF/WebUserControls/cmp_batchDetailSplit.ascx
+++ b/NKC_WF/WebUserControls/cmp_batchDetailSplit.ascx
@@ -18,6 +18,15 @@
                 </asp:LinkButton>
             </div>
             <div class="col-4"></div>
+            <div id="divError" runat="server" class="col-12 alert alert-warning" visible="false">
+                <div class="fs-2 text-danger">
+                    <asp:Label ID="lblError" runat="server" CssClass="font-weight-bold" />
+                </div>
+                <div class="small text-danger">
+                    <asp:Label ID="lblErrorDetail" runat="server" CssClass="font-weight-bold" />
+                </div>
+
+            </div>
         </div>
     </div>
     <div class="card-body p-1">
diff --git a/NKC_WF/WebUserControls/cmp_batchDetailSplit.ascx.cs b/NKC_WF/WebUserControls/cmp_batchDetailSplit.ascx.cs
index ff560f4..8403da5 100644
--- a/NKC_WF/WebUserControls/cmp_batchDetailSplit.ascx.cs
+++ b/NKC_WF/WebUserControls/cmp_batchDetailSplit.ascx.cs
@@ -331,6 +331,7 @@ namespace NKC_WF.WebUserControls
 
         protected void lbtBalance_Click(object sender, EventArgs e)
         {
+            divError.Visible = false;
             // imposto la % secondo numero di abilitati...
             Ratio01 = enable01 ? (double)(100 / numEnabled) / 100 : 0;
             Ratio02 = enable02 ? (double)(100 / numEnabled) / 100 : 0;
@@ -421,6 +422,7 @@ namespace NKC_WF.WebUserControls
                 fixRatio();
                 checkDisplayMode();
                 fixEnabled();
+                divError.Visible = false;
             }
             cmp_orderExtListNE01.eh_doRefresh += Cmp_orderExtListNE01_eh_doRefresh;
             cmp_orderExtListNE02.eh_doRefresh += Cmp_orderExtListNE02_eh_doRefresh;
@@ -830,7 +832,8 @@ namespace NKC_WF.WebUserControls
             {
                 RawList.Add(item.OrdID, item.EstProcTime);
             }
-            Log.Instance.Trace($"Rebalance | S02 | listOrders.count: {listOrders.Count}");
+            int numOrdOrig = listOrders.Count;
+            Log.Instance.Trace($"Rebalance | S02 | listOrders.count: {numOrdOrig}");
             // ordino la lista x processing successivo
             OrderedList = RawList.OrderBy(x => x.Value).ToDictionary(t => t.Key, t => t.Value);
             // inizio immaginando di usare TUTTI gli ordini
@@ -956,65 +959,78 @@ namespace NKC_WF.WebUserControls
             {
                 Log.Instance.Error($"Exception durante rebalance 01:{Environment.NewLine}{exc}");
             }
-            // check sul num di spostamenti1
-            int numMove = 0;
-            int numOk = 0;
-            Log.Instance.Trace("Rebalance | Starting final stage (DB modifications)");
-            try
+            // 2024.09.20: controllo che il numero ordini torni o LO SEGNALO come errore...
+            int numAssigned = SetNe01.OrderSet.Count + SetNe02.OrderSet.Count + SetNe03.OrderSet.Count;
+            if (numAssigned != numOrdOrig)
             {
-                // riorganizzo tabOrders...
-                foreach (var orderItem in TabOrders)
+                divError.Visible = true;
+                Log.Instance.Error($"Error during rebalance | numOrdOrig: {numOrdOrig} | numAssigned: {numAssigned}");
+                lblError.Text = traduci("ERR_Rebalance01");
+                lblErrorDetail.Text = $"{traduci("ERR_Rebalance02")} | # Orig: {numOrdOrig} | # Assigned: {numAssigned}";
+            }
+            else
+            {
+                divError.Visible = false;
+                // check sul num di spostamenti1
+                int numMove = 0;
+                int numOk = 0;
+                Log.Instance.Trace("Rebalance | Starting final stage (DB modifications)");
+                try
                 {
-                    if (SetNe01.OrderSet.ContainsKey(orderItem.OrdID))
+                    // riorganizzo tabOrders...
+                    foreach (var orderItem in TabOrders)
                     {
-                        if (orderItem.BatchID != cmp_orderExtListNE01.BatchId)
+                        if (SetNe01.OrderSet.ContainsKey(orderItem.OrdID))
                         {
-                            DLMan.taOLT.updateBatch(orderItem.BatchID, orderItem.OrdID, cmp_orderExtListNE01.BatchId);
-                            numMove++;
+                            if (orderItem.BatchID != cmp_orderExtListNE01.BatchId)
+                            {
+                                DLMan.taOLT.updateBatch(orderItem.BatchID, orderItem.OrdID, cmp_orderExtListNE01.BatchId);
+                                numMove++;
+                            }
+                            else
+                            {
+                                numOk++;
+                            }
                         }
-                        else
+                        if (SetNe02.OrderSet.ContainsKey(orderItem.OrdID))
                         {
-                            numOk++;
+                            if (orderItem.BatchID != cmp_orderExtListNE02.BatchId)
+                            {
+                                DLMan.taOLT.updateBatch(orderItem.BatchID, orderItem.OrdID, cmp_orderExtListNE02.BatchId);
+                                numMove++;
+                            }
+                            else
+                            {
+                                numOk++;
+                            }
                         }
-                    }
-                    if (SetNe02.OrderSet.ContainsKey(orderItem.OrdID))
-                    {
-                        if (orderItem.BatchID != cmp_orderExtListNE02.BatchId)
+                        if (SetNe03.OrderSet.ContainsKey(orderItem.OrdID))
                         {
-                            DLMan.taOLT.updateBatch(orderItem.BatchID, orderItem.OrdID, cmp_orderExtListNE02.BatchId);
-                            numMove++;
-                        }
-                        else
-                        {
-                            numOk++;
-                        }
-                    }
-                    if (SetNe03.OrderSet.ContainsKey(orderItem.OrdID))
-                    {
-                        if (orderItem.BatchID != cmp_orderExtListNE03.BatchId)
-                        {
-                            DLMan.taOLT.updateBatch(orderItem.BatchID, orderItem.OrdID, cmp_orderExtListNE03.BatchId);
-                            numMove++;
-                        }
-                        else
-                        {
-                            numOk++;
+                            if (orderItem.BatchID != cmp_orderExtListNE03.BatchId)
+                            {
+                                DLMan.taOLT.updateBatch(orderItem.BatchID, orderItem.OrdID, cmp_orderExtListNE03.BatchId);
+                                numMove++;
+                            }
+                            else
+                            {
+                                numOk++;
+                            }
                         }
                     }
                 }
+                catch (Exception exc)
+                {
+                    Log.Instance.Error($"Exception durante rebalance 02:{Environment.NewLine}{exc}");
+                }
+                answ = listOrders.Count > 0;
+                Log.Instance.Trace($"Final check | S14 | answ: {answ} | listOrders.Count: {listOrders.Count} | numMove: {numMove} | numOk: {numOk}");
+                // salvo tempo calcolo
+                stopWatch.Stop();
+                var elapsTime = stopWatch.Elapsed;
+                Log.Instance.Info($"Rebalance executed | R01: {Ratio01:P1}/{SetNe01.ActualValue / FullSet.ActualValue:P1} | R02: {Ratio02:P1}/{SetNe02.ActualValue / FullSet.ActualValue:P1} | R03: {Ratio03:P1}/{SetNe03.ActualValue / FullSet.ActualValue:P1} | maxDepth: {maxDepth} | elapsed ms: {elapsTime.TotalMilliseconds:N1}");
+                // resetto batch ordini...
+                ComLib.OrdersExtResetCache();
             }
-            catch (Exception exc)
-            {
-                Log.Instance.Error($"Exception durante rebalance 02:{Environment.NewLine}{exc}");
-            }
-            answ = listOrders.Count > 0;
-            Log.Instance.Trace($"Final check | S14 | answ: {answ} | listOrders.Count: {listOrders.Count} | numMove: {numMove} | numOk: {numOk}");
-            // salvo tempo calcolo
-            stopWatch.Stop();
-            var elapsTime = stopWatch.Elapsed;
-            Log.Instance.Info($"Rebalance executed | R01: {Ratio01:P1}/{SetNe01.ActualValue / FullSet.ActualValue:P1} | R02: {Ratio02:P1}/{SetNe02.ActualValue / FullSet.ActualValue:P1} | R03: {Ratio03:P1}/{SetNe03.ActualValue / FullSet.ActualValue:P1} | maxDepth: {maxDepth} | elapsed ms: {elapsTime.TotalMilliseconds:N1}");
-            // resetto batch ordini...
-            ComLib.OrdersExtResetCache();
             cmp_orderExtListNE01.doUpdate();
             cmp_orderExtListNE02.doUpdate();
             cmp_orderExtListNE03.doUpdate();
diff --git a/NKC_WF/WebUserControls/cmp_batchDetailSplit.ascx.designer.cs b/NKC_WF/WebUserControls/cmp_batchDetailSplit.ascx.designer.cs
index e222b18..f1861f8 100644
--- a/NKC_WF/WebUserControls/cmp_batchDetailSplit.ascx.designer.cs
+++ b/NKC_WF/WebUserControls/cmp_batchDetailSplit.ascx.designer.cs
@@ -77,6 +77,33 @@ namespace NKC_WF.WebUserControls
         /// </remarks>
         protected global::System.Web.UI.WebControls.LinkButton lbtBalance;
 
+        /// <summary>
+        /// divError control.
+        /// </summary>
+        /// <remarks>
+        /// Auto-generated field.
+        /// To modify move field declaration from designer file to code-behind file.
+        /// </remarks>
+        protected global::System.Web.UI.HtmlControls.HtmlGenericControl divError;
+
+        /// <summary>
+        /// lblError control.
+        /// </summary>
+        /// <remarks>
+        /// Auto-generated field.
+        /// To modify move field declaration from designer file to code-behind file.
+        /// </remarks>
+        protected global::System.Web.UI.WebControls.Label lblError;
+
+        /// <summary>
+        /// lblErrorDetail control.
+        /// </summary>
+        /// <remarks>
+        /// Auto-generated field.
+        /// To modify move field declaration from designer file to code-behind file.
+        /// </remarks>
+        protected global::System.Web.UI.WebControls.Label lblErrorDetail;
+
         /// <summary>
         /// divHeadNe01 control.
         /// </summary>