Concepts Tasks Settings Redrafting an Invoice Once an invoice is sent for approval or approved, it is locked so that users cannot change properties or add lines. If you need to make a change after the invoice has been locked, you can redraft it. You will need to send it for approval again. An invoice and its lines cannot be redrafted after the invoice has been posted. However, non-financial information can be changed on a posted invoice, as long as the financial entries have not been sent to an interfaced financial system. To Redraft an Invoice 1. Open the invoice you want to redraft. 2. From the Invoice menu, select Redraft. You can now make changes and add lines to the invoice.