(ID#420) This A/P option in Options Configuration determines whether or not you must enter a Vendor Reference number in the New A/P Transactions window for temporary vouchers that were created when you ran APP (Accounts Payable Passoff).
Yes = when you display a temporary voucher in the New A/P Transactions window, you will be required to enter a value in this field before the voucher can be changed.
N = Use the voucher number as the vendor reference number.