Days from a shipment's delivery to its invoice, per customer and branch. Delivered and unbilled past a stated age is the ageing list, with the cause per shipment: carrier cost pending, accessorial dispute, or a customer batch rule. Each cause has a different fix and a value waiting.
Air cycles are shorter than ocean. Compare within mode.
An ageing list without the cause is a number nobody can act on.
Invoice date minus delivery date, per shipment, summarised as a median per customer and per branch, with delivered and unbilled items past a stated age listed.
One office invoices a median of 6 days after delivery and another 19. At $2 million a month, the thirteen extra days are about $870,000 of revenue permanently waiting to be billed.
Treated as an accounts problem. The delay is usually upstream: missing proof of delivery, disputed accessorials, or jobs not closed by operations.