Use this window to accomplish netting between both supplier invoices and payments on account and customer invoices and payments on account. The window consists of three tabs, General, Supplier Invoices/Prepayments and Customer Invoices/Prepayments. The supplier and customer must be part of the same organization, and the check box Netting Allowed (in the Payment tab of Supplier) must be checked before netting can take place. It is not possible to use the netting function if the supplier is blocked for payment or if the invoice is included in a payment proposal or payment order.