diff --git a/src/bnhtrade.Core/Logic/Stock/SkuTransactionReconcile.cs b/src/bnhtrade.Core/Logic/Stock/SkuTransactionReconcile.cs
index 2fd1f2e..aa2fc9c 100644
--- a/src/bnhtrade.Core/Logic/Stock/SkuTransactionReconcile.cs
+++ b/src/bnhtrade.Core/Logic/Stock/SkuTransactionReconcile.cs
@@ -158,14 +158,14 @@ namespace bnhtrade.Core.Logic.Stock
                                     if (shipmentInfo.IsSetShipmentStockStatusId())
                                     {
                                         // +ve shipment receipt
-                                        if (transList[i].SkuTransactionType.CreditStockStatusId == 0
+                                        if (transList[i].SkuTransactionType.CreditStockStatusId == null
                                             && transList[i].SkuTransactionType.DebitStockStatusId > 0)
                                         {
                                             transList[i].SkuTransactionType.CreditStockStatusId = shipmentInfo.ShipmentStockStatusId;
                                         }
 
                                         // -ve shipment receipt
-                                        else if (transList[i].SkuTransactionType.DebitStockStatusId == 0
+                                        else if (transList[i].SkuTransactionType.DebitStockStatusId == null
                                             && transList[i].SkuTransactionType.CreditStockStatusId > 0)
                                         {
                                             transList[i].SkuTransactionType.DebitStockStatusId = shipmentInfo.ShipmentStockStatusId;