Hi Josephine, 

Thanks for sharing the details. Based on what you've described, here are two common scenarios and how you can handle them. If you're still unsure, it's always a good idea to check with the provider of your support package for further help.

Scenario 1: The customer has overpaid
You can create a Sales Receipt for the full amount the customer paid. Then, apply the correct amount to the outstanding invoice(s). The extra amount will stay as a credit on the account.
When the next invoice is due, you can use that credit to help pay it off.

Scenario 2: The customer has underpaid
Create a Sales Receipt for the amount received. Apply it to the correct invoice(s). This will leave a balance still due.
When the customer sends the remaining amount, you can go back and apply it to the unpaid invoice and any new ones, which should clear the balance.

Thank you 

Adam

Thank you Adam.