Receivables lets you unapply cash that was previously applied to a transaction and create a credit memo for that amount.
For example, your customer returns a product for which they have already paid in full. You can unapply the cash for that transaction, then create a credit memo for the full amount against the invoice.
After you unapply the cash, you can either:
Place the cash on account for later reallocation to a different transaction, or
Send the cash back to your customer
For example, to create a manual credit card refund, you could simply unapply the cash from a transaction, create the credit card refund, and then credit the transaction. See: Credit Card Refunds.
To automate this process, see Automated Receipt Handling for Credits.
Prerequisites
Navigate to the Receipts window.
Query the receipt to unapply, then choose Apply.
Uncheck the Apply check box next to the transaction.
Save your work.
Navigate to the Credit Transactions window.
Query the transaction from step 3.
Create a credit memo for the full or partial amount.
See: Crediting Transactions.