This field is in the New A/P Transactions window.
The Vendor Reference Number is usually the invoice number. You can enter up to 20 characters.
If there is not an invoice number, you can click the arrow to the right of the box and select either Voucher Date or Voucher Number, and the system will use the voucher date or number as the vendor reference number.
The system does not allow duplicate reference numbers for the same vendor. You will have to assign a unique Vendor Reference number for every voucher for a particular vendor.
This field is a hyperlink, which means you can click on it to display the related function. Thus, if you need to change the Vendor Reference Number, simply click and the ATMU viewer automatically displays.