In this tutorial you will learn how to turn an invoice into a credit invoice. To do so, follow the steps below.
1. Go to the Sales Invoices submenu of the Invoicing module. Go to Invoices and choose an invoice from the list.
2. Click on and choose the action "Credit Invoice".
3. By clicking on the invoice itself and then choosing "Credit Invoice" from the Actions button, you will get the same result.
4. A new screen will open. Click on "Date" to change the date of the credit invoice.
5. You can also change the quantity of the item in the credit invoice, you do this under "Quantity".