Be able to generate a report of the invoices that have not been collected, depending on how long they are due on a certain date? For example, at the close of a period, list what was left uncollected and group it according to how old each bill is. Accounts receivable by maturity period: From 1 to 30 days after expiration. From 31 to 60 From 60 to 90 From 91 to 120 From 121 to 180 From 180 to 360 More than a year It could help to identify actions to be taken to collect these bills, as well as to determine which accounts to lose as uncollectible and to determine the appropriate provision for the next period.