When customers overpay an invoice, it is requested that the over-payment may be associated with an individual invoice. Currently, in the customer payment journal, the 'Amount to pay' column in the payment journal does not allow the amount to be greater than the invoice. The un-applied over-payment amount is posted in sum as a credit on the vendor account. Enabling functionality to associate the over-payment to individual invoices within the customer payment journal would improve efficiency in the AR staff. Maintenance, cleanup and customer communication would be improved.