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.
Feeds come in two types: flat text files, which you can build using a spreadsheet
application, and XML documents. You can find templates for creating flat text
files and XML files for inventory and orders on Seller Central for your locale.