Looking at the database it seems that negative PO receipts are causing these blank lines to show up in the PO-J-B report. If Purchasing needs to do a negative PO to return bad parts to a vendor and they are received into QC  it seems like the system won't let you buy them off.
 
Does this sound correct and if so will manually entering a buy-off date in BKQCMSTR provide a temporary fix?
 
Keith

OK, but what if you need to credit inventory and a vendor for "line fall out"?
 
What I see happening here is a negative PO is being issued to create a credit memo and reduce inventory for parts being returned and sometimes it seems, whoever is receiving the neg PO into the system is going through QC which is causing the problem I'm describing......
 
Make sense?