Amending and Voiding Invoices
You can make changes to an invoice even after it has been approved or paid, without needing to create a new one. You can also void an invoice to cancel it completely.Amending an Approved Invoice
Mark as unpaid
At the bottom of the invoice screen, click Mark as Unpaid. The invoice status will change to Awaiting Payment.
Voiding an Invoice
Mark as unpaid
Select the invoice and click Mark as Unpaid. The status will change to Awaiting Payment.
You do not need to create a new invoice to make changes. You can amend the existing invoice directly.

