We order kegs of beer from various vendors. They charge us a deposit on each keg of $50, which we add to our purchase order so we know what our total order amount is. When we return that keg back to the vendor, is there a way to put a keg deposit return on a purchase order to that vendor of a -$50 (deposit refund) or a -1 unit and have it deducted from our purchase order amount? Otherwise, the PO amount does not match our actual invoice amount. So in other words, we have a pending PO of $150 from a vendor, but at the time of delivery, we have a return worth $50 going back which is deducted by the vendor at the time of delivery. Now our invoice amount is only $100 but our PO amount still is at $150.
