post office how to track a package explains how customers and businesses can monitor their parcels through the USPS tracking system. To track a package, simply use the tracking number provided by the sender, which can be entered on the USPS website or through other tracking tools. For e-commerce sellers, offering easy access to tracking information helps reduce customer inquiries and improve service. Tracking also helps ensure that packages reach their destination on time, providing peace of mind for both businesses and customers.