Amazon Services
Amazon Marketplace Web Service (Amazon MWS) Documentation

Deprecation Notice:

Amazon Marketplace Web Service (MWS) will no longer be available after December 31, 2023. All MWS developers must migrate to Selling Partner API (SP-API) to avoid service disruptions. Refer to the Migration Hub for more information.

Amazon MWS Documentation

Step 5 - Use an Amazon-partnered carrier for your inbound shipments (optional)

Sellers in the EU region (the France, Germany, Italy, Spain, and UK marketplaces) and the US marketplace can take advantage of discounted shipping rates by using an Amazon-partnered carrier for their inbound shipments.

For more information, see Using an Amazon-partnered carrier for your inbound shipment.