A client does recurring billing using Archive batches, and for their COD customers they fill in a check number (they always use a "1") in the Payments tab. When they restore the archived invoices, they tick off "Include payment" and "Assign check number" and the check number gets converted to a unique number. All good.
They commonly add a one-time detail to the invoice. Right now, they have to remember to visit the Payments tab and manually change the Payment field to match the revised invoice total - the payment amount doesn't automatically update when the invoice total changes. Naturally, they sometimes forget, which is a problem.
Is there a way to automate the updating of the payment amount on an invoice when the total changes?
Steve