Diagnosis
In Customizing under Financial Accounting (New) -> AccountsReceivable and Accounts Payable -> Business Transactions -> Debit-Sideand Credit-Side Down Payment Chains -> Enhance Debit-Side andCredit-Side Down Payment Chains -> Assign Chain Type to Item Categoryfor Sales Documents, you have not defined an entry for the companycode &V2& and item category &V1& of the sales order.

System Response
The system cannot maintain the sales order item.

Procedure
You have to define an assignment for the company code &V2& and itemcategory &V1& of the sales order to a chain type.