diff --git a/WarehouseMgr/Tnb.WarehouseMgr/WmsPDAInStockService.cs b/WarehouseMgr/Tnb.WarehouseMgr/WmsPDAInStockService.cs
index 1d636250..b3a489ee 100644
--- a/WarehouseMgr/Tnb.WarehouseMgr/WmsPDAInStockService.cs
+++ b/WarehouseMgr/Tnb.WarehouseMgr/WmsPDAInStockService.cs
@@ -148,7 +148,7 @@ namespace Tnb.WarehouseMgr
                             var requireIdField = "require_id";
 
                             var preTaskUpInput = new GenPreTaskUpInput();
-                            preTaskUpInput.RquireId = input.data["ReturnIdentity"].ToString();
+                            preTaskUpInput.RquireId = input.data["ReturnIdentity"].ToString()!;
                             preTaskUpInput.CarryId = input.data[nameof(WmsCarryD.carry_id)]?.ToString()!;
                             preTaskUpInput.CarryStartLocationId = points.FirstOrDefault().location_id;
                             preTaskUpInput.CarryStartLocationCode = points.FirstOrDefault().location_code;