AP Offline Load

Hello,

I am having trouble getting the desired results while doing the AP
Offline Load.

I have an invoice that may have multiple purchase orders with multiple
lines. I check the order quantity for each PO line against the shipped
quantity. If the shipped quantity is less then the order quantity I want
the PO to have a Partial status.

I can not figure out how to write the records to the offline load file
so that one PO is complete and another PO is partial. If I set field
INCP in the "MA" record to "P" or "C" then every PO is chows up in the
batch as being partial or complete. I do set field INVDS in the "NB"
record to either "P" or "C", but this doesn't seem to have any impact on
the Completion Code field on the Invoice & Credit P.O. Header (AMV16P)
screen.

Is there a way to set each individual PO as partial or complete?

Thanks,
Kent