Hi;
We had a strange thing happen. Our P.O. person saw what had been a closed P.O. come up with zero to receive. All the items had been received. So, to close it, our P.O. person received zero items. Rather than receiving zero items, it received the P.O. again, but not in the G/L or the inventory transactions. The G/L is normal and the inventory transactions are correct, only the RNI report and the P.O. receiving report shows that the P.O. was received again at the later date.  
Please help. We cannot issue a credit memo, because that would definitely affect the G/L. Our book keeper is going nuts.
Arnold

Try PO-K to closed the purchase order.  That will remove it from the Received/Not Invoiced Report, and does not affect the General Ledger nor Inventory transactions.
 
There is a "bug" in the program that when a purchase order is reopened, the items appear back on the Received/Not invoiced report, even though everything has already been received and could have already been paid.