When you reduce the quantity in a partially shipped sales order that contains prepayment in Microsoft Dynamics NAV 2009, you receive the following error message:
"Prepmt. Line Amount Excl. VAT cannot be."
The result is that you cannot delete the order. After you apply the correction listed here, the same error still shows. However, you can delete the order as you can have an order without prepayment. Follow the steps in the code changes section to solve this issue. This problem occurs in the following products:- Microsoft Dynamics NAV 2009 R2
- Microsoft Dynamics NAV 2009 SP1