Scenario
A/R Aging Report shows that Customer XXX has zero Total Open Balance, but Customerrecord > Financial tab > shows that Customer XXX has remaining overdue balance.
Solution
There is still overdue balance on the Customer Record because the Payment has been already created however, it is not yet applied to the related Invoice. Meanwhile, the A/R Aging Report shows zero balance because the amount of the Payment and Invoice is offsetting to each other.
1. On the Customer record > Click Accept Payment
2. Select the related Invoice under Apply tab > Invoices subtab
3. On the Credits/Deposit subtabs select those lines to offset on the invoices selected.
3. Click Save