Process a Refund From the Invoices Page
1. Create a new Invoice
2. Select the Customer who will receive the refund
3. Add the product(s) to be returned
4. Adjust the quantity of those items to -1

5. Save the invoice
6. Select Process Refund

7. Tender the refund (Cash only at this time)

8. The item(s) on the invoice have now been added back to your inventory