Unpaid customer invoices
One line for each customer invoice not fully paid on the day before your start date.
What it is
Programs call this report aged debtors, aged receivables or customer balances (days outstanding). Choose the detailed version: one line per invoice, not one line per customer.
Each line needs the customer, the invoice number, the date and the amount still owed.
Why DIANO needs it
Each unpaid invoice comes across on its own. Then you can record payments against it in DIANO. And each customer's statement is right.