Shipping labels display the key information for a carrier to transport a package from their start destination (your warehouse) to its end destination (the customer's hands). ... Each label is unique and you cannot reuse old labels. A new label must be created for each delivery.

What is postage label?

Shipping labels are a type of identification label that helps describe and specify what's inside a package. Shipping labels differ depending on the carrier you use, but they all consist of things like addresses, names, weight, and a tracking barcode.

Is postage and shipping label the same?

Without the paid postage and the USPS bar code, your shipping label is for informational purposes only and still needs postage paid to ship. When in doubt, take your shipping label to your closest post office and ask if the postage has been paid to avoid any delays on getting your shipment where it needs to go.