How to Fix Incorrect Invoice Balance Due to Negative Payment

Problem

You need to fix an invoice balance due to a negative payment but you cannot find the invoice in Payment Collections.

Solution

1. Search for and go to the invoice with the incorrect balance.

2. Add a placeholder task on the invoice for an amount equal to the negative payment.

3. The invoice balance should double up.

4. Go to the Collect and Apply Payment screen and collect the payment. The invoice should now appear since it has an invoice balance.

5. When you have collected the payment, delete the placeholder task you added in step 2.