Much obliged.
Why would it need a two line invoice? If full amount is for the voucher i.e. 100 + 20 (VAT) = 120 voucher
I thought this might be straight forward but once a new code is set up and the box is ticked to allow it be used in invoices, how do I assign invoices to it? Invoices are still going to General Sales, and when looking at this nominal account, it is not possible to transfer over to the new nominal code that is a liability.