diff --git a/Mango.Nop.Core/Dtos/ModelDtoBase.cs b/Mango.Nop.Core/Dtos/ModelDtoBase.cs
index b6ac8a8..25cbd62 100644
--- a/Mango.Nop.Core/Dtos/ModelDtoBase.cs
+++ b/Mango.Nop.Core/Dtos/ModelDtoBase.cs
@@ -1,4 +1,5 @@
-using Nop.Core;
+using AyCode.Core.Interfaces;
+using Nop.Core;
 
 namespace Mango.Nop.Core.Dtos;
 
diff --git a/Mango.Nop.Core/Entities/MgStockTaking.cs b/Mango.Nop.Core/Entities/MgStockTaking.cs
index 658c88d..dce99f7 100644
--- a/Mango.Nop.Core/Entities/MgStockTaking.cs
+++ b/Mango.Nop.Core/Entities/MgStockTaking.cs
@@ -9,6 +9,8 @@ public interface IMgStockTaking : IEntityInt, ITimeStampInfo
 {
     public DateTime StartDateTime { get; set; }
     public bool IsClosed { get; set; }
+
+    public bool IsReadyForClose();
 }
 
 public abstract class MgStockTaking<TStockTakingItem> : MgEntityBase, IMgStockTaking where TStockTakingItem : class, IMgStockTakingItem
@@ -16,6 +18,8 @@ public abstract class MgStockTaking<TStockTakingItem> : MgEntityBase, IMgStockTa
     public DateTime StartDateTime { get; set; }
     public bool IsClosed { get; set; }
 
+    public abstract bool IsReadyForClose();
+
     [Association(ThisKey = nameof(Id), OtherKey = nameof(IMgStockTakingItem.StockTakingId), CanBeNull = true)]
     public List<TStockTakingItem>? StockTakingItems { get; set; }