There are two methods that can be used to pay only a portion of an AP invoice.

From the AP Payment Record

1. In the top ribbon menu, hover over Vendor and select Manual Payment.
   The AP Payment record opens in a new tab.
2. Select the invoice(s) to pay.
3. In the Amount field, enter the amount to pay.
4. Continue completing the necessary fields. 
5. Save or Approve the payment as normal.

From a Payment Run

1. In the top ribbon menu, hover over Vendor and select Payment Run.
   The Payment Run record opens in a new tab.
2. Select the invoice(s) to pay.
3. Select the number in the Pay column of the Invoices table.
   The amount can now be edited.
4. Enter the amount to pay.
5. Continue completing the necessary fields. 
6. Save, Approve, and/or Create the payment as normal.