Do you ever find that you've paid an invoice more than once by mistake? You're not the only one! Even though proper checking and verification of vouchers to be paid is being done, with a large volume of invoices, it's possible that a second copy of an invoice gets vouchered and paid again. To help eliminate this problem, this supplement is available to track invoice numbers entered on vouchers per vendor code. When entering vouchers, if an invoice number for a vendor is entered that was previously entered for the same vendor code, the batch and document number previously used will be displayed. The option to override is available for voiding vouchers or other unusual circumstances.