Is it possible to easily edit the template that's being used for the layout of an invoice? In Belgium, we work very often with something called a "structured communication". That's an automatically generated code in a fixed format like +++123/1234/12345+++. It's calculated based upon an invoice number or something else. When the invoice gets paid, bookkeeping programs can automatically match this code with a payment, resulting in a high level of efficiency. Without this possibility, we can't use CompoJoom for our clients...
The program coding itself is rather easy. Just a couple of lines to calculate the structured communication code, based upon the invoice number.