Purchase Order Receipt and Voucher

Hello,

we have a plant that receives stock items from a certain vendor. For the vendor that item in fact is waste. So by the end od every month we credit and pay the vendor for the monthly deliveries (a non-stock credit note = a dollar per lbs or so).

How can we receive the goods in JDE into stock against the purchase order, but not doing any voucher match (or should we do a voucher match ones a month against all deliveries and use our credit note as the vendor invoice)?

Thanks a lot.

rgds Kristian