Validation of Records in the Purchase Order Detail Table (P4311)

The VMA process verifies that a purchase order line exists for the receipt line that it matches to invoice lines. The purchase order line associated with the receipt line must be fully received and have a status of 999 (closed).

However, if you have selected the Partial Receipts Allowed option in the supplier master, the system matches invoices to the purchase orders that are not fully received and are not at status 999 (closed).