Can i exchange stock items after invoice made and paid for

Hi there, rosalindegabriel.

We can record refund receipts for an item or service. This is to keep your books updated. Please note that you haven't entered a credit note yet. I'll show you how:

1. Go to the + New button and select Refund receipt or Give refund.
2. From the Customer ▼ dropdown menu, choose the customer you want to refund.
3. From the Refund From ▼ dropdown menu, select the bank you deposited the payment for the invoice too.
4. Add all products or services the customer returned in the Product or service column.
5. Make sure to fill the quantity, rate, amount, tax, and other fields accordingly, then select Save and close.

To learn more details about this, please check it here.

Please let me know if you need more help.