Use a Purchase Invoice that identifies the product being purchased and has two additional line items that use up the prepay dollars and reduce the amount that is due on the A/P bill.
On the Purchase Invoice:
- Select the product to be purchased.
- Select the generic prepay product twice.
- The first prepay product will have a positive quantity, and will be marked as prepaid.
- The second prepay product will have a negative quantity.
- Both prepay product line item quantities will be for the amount of the prepay dollars remaining and have a unit price of $1.00.