PO Matching Goods not Received.

Hi,

I have PO header and line data are being feeding from a system outside of Oracle. The data if fed into Oracle PO tables before goods are received and a follow up feed is loaded once the goods are received.

ISSUE

At the time of invoice creation we have PO header lines but no goods received on the PO. When the Invoice in matched to the PO lines it requires a shipment number, this shipment number is not available since the goods are not yet received. I need this to match successfully but I cannot match if system requires shipment number.