A customer may want to pay only part of the balance on his account. Since the the amount tendered must cover the amount displayed as Total Due on the Tender window, you must enter the lower amount in the Payment Amount field on the Bill Payment window.
To tender a partial payment:
Open the Bill Payment window.
Enter the amount the customer is paying in Payment Amount.
Click Tender. This displays the Tender window for bill payment. The Tender Amount is the same as the Payment Amount on the Bill Payment window.
Enter the amount the customer gives you.
Click the button that corresponds to the tender type the customer is using, such as Cash. This adds the amount and tender type to the list, reduces the Total Tendered amount, reduces the Balance and displays the Change amount to be returned to the customer.
Click Finalize to accept the bill payment. This displays a confirmation window.
Click Yes to confirm the payment. This closes the Tender window unless the payment is larger than the Total Due. In that case, the Tender Change window displays the amount due to the customer.
After giving the change to the customer, click Done to close the window.