You can allocate invoices, invoice corrections, credit notes, credit note corrections, and prepayments to a payment. You can also select open items created for other customers and created in other entities. In this case, the allocation creates a cross-company posting.

The system marks and numbers linked items to avoid double payment.

When you modify a payment instrument, the allocated amounts of invoices that were already linked can be changed. In this case, the invoice balance is changed and, if necessary, the invoice is reopened.