diff --git a/WarehouseMgr/Tnb.WarehouseMgr/WmsOutStockService.cs b/WarehouseMgr/Tnb.WarehouseMgr/WmsOutStockService.cs
index bde47097..cb297a26 100644
--- a/WarehouseMgr/Tnb.WarehouseMgr/WmsOutStockService.cs
+++ b/WarehouseMgr/Tnb.WarehouseMgr/WmsOutStockService.cs
@@ -412,10 +412,9 @@ namespace Tnb.WarehouseMgr
                             }
                             if (dicUpdate.Count > 0)
                             {
-                                //var dicCarryCodes = carryCodes.FindAll(x => dicUpdate.Keys.Contains(x.barcode)).GroupBy(g => g.barcode).ToDictionary(x => x.Key, x => x.FirstOrDefault());
                                 foreach (var pair in dicUpdate)
                                 {
-                                    WmsCarryCode carryCode = carryCodes.Find(x => x.barcode == pair.Key);
+                                    WmsCarryCode? carryCode = carryCodes.Find(x => x.barcode == pair.Key);
                                     if (carryCode != null)
                                     {
                                         carryCode.codeqty = pair.Value;