usps tracking number track & confirm refers to the tracking service provided by USPS that allows customers to check the status and location of their parcels using a unique tracking number. This service helps businesses and individuals track the progress of their shipments, ensuring that they are delivered on time. For e-commerce businesses, providing USPS tracking numbers to customers improves transparency and customer service. It is important to monitor the status of packages regularly to address any issues such as delays or missing items promptly.