Amazon Buy Shipping is a shipping service offered by the marketplace - it works as a shipping broker. The seller, from the level of his account in Seller Central, buys a courier service from Amazon (commercial settlements are made with Amazon), and the shipments themselves are carried out by a carrier from the Amazon list, e.g. DPD, UPS, FedEx or USPS.
Amazon Buy Shipping is primarily the ability to simultaneously purchase multiple labels from different carriers without the need to create accounts with them. Through the service, Amazon offers a simplified model of settlements with one trading partner and competitive shipping prices.
Discover the possibilities of integrating with the Amazon Buy Shipping service:
Amazon Buy Shipping + Marketplace
Amazon Buy Shipping + Shops