Our team has to provide PROOF OF DELIVERY to accounts receivable's use in payment collection efforts. If we were able to see either the AGE or DUE DATE of an invoice directly in the list view, we would not have to run a report that includes all invoices by aging category. We could simply sort by due date, and work with the invoices we must track that day.
on the sales invoice list, you could add settings and add tracking status, then use drop down messages as is delivered, undelivered, proof of delivery attached etc, then you could also add the field net due etc. if I misread your suggestion i appoligize, i've been using sage for over 20 years