Tracking numbers, PRO numbers and what each status means
A PRO number is the identifier a carrier assigns to an LTL shipment at pickup. It is printed on a sticker applied to the freight and the bill of lading, and it is the number used for tracking and invoicing.
Typical statuses are picked up, in transit, arrived at terminal, out for delivery and delivered. An exception status means something interrupted the plan, such as weather, a missed appointment or a damaged pallet, and usually comes with a revised delivery estimate.
Tracking data is only as fresh as the last scan. A shipment moving between terminals overnight may show no update for many hours even though it is on schedule.