A Credit Amount can occur when a customer pays more than the balance of their outstanding invoices or pays a deposit for an invoice that has not yet been prepared.
When applying a receipt for more than the total of the invoice, the surplus is saved as a Credit.
This can also happen when assigning an Adjustment Credit Note to an invoice for greater than the amount owing.
The surplus is added to the customer’s Credit Amount.
Please Note: to create a credit amount, you must first create an Adjustment Note for an invoice that has been fully paid.