track package by order number usps is a feature offered by USPS that allows customers to trace their packages using the order number provided at checkout. By entering the tracking number on the USPS website or in the USPS app, customers can get real-time updates on the status of their shipment, including the package’s location, estimated delivery date, and any delays. This tracking feature is an essential tool for businesses and customers alike, ensuring that packages are delivered on time and in good condition.