Field help (PRCPQTY) 

Help common to functions: Shipments, Shipment pre-receipt and Order pre-receipt.

This field contains the pre-received quantity. This quantity can only be entered at the level of the pre-receipt screen as long as the status of the shipment is 'Created'.
When all the shipment lines have an entered quantity, the shipment status goes from 'Created' to 'Pre-receipt'.

In Shipment pre-receipt: