The following page shows how to delete a payment of an invoice using invoicefu. Foremost, you need to sign in the application. Once logged, click the 'INVOICES' button of the header menu to access your invoice's list. You can access the payment box of any invoice by clicking its pending amount link, as shown below.
Note: the payment box is also accessible from the invoice detailed view.
The payment box permits you to proceed to partial and full payments. But it also displays the payment history of the concerned invoice.
You can easily delete a payment by clicking on its dustbin icon. A 'Are you sure you want to delete?' confirmation message will be displayed. Click 'Ok' to confirm the procedure and permanently delete the payment line.