Paying Invoice by Applying Entry

We issued a check for merchandise to a company as a prepayment. The account debited is a Pre-Paid.

Now we are buying materials through the Purchasing Module. We issue a PO to the vendor, receive the items through Warehouse and are ready to pay the invoice. We want to allocate the invoice amounts against the Pr-Pay account and not issue a check to the vendor.

The system allows for this entry, but I just can’t remember how to apply the payment to an account as opposed to issuing a check.

How do you do this?

Thanks!

If you enter a negative G/L line in invoice with the same check G/L account, you will discount check to invoice.