Large Merchant Services

Large Merchant Services APIs

Note: Large Merchant Services (LMS) functionality as a SOAP service is deprecated and will be decommissioned by the end of April 2022. It is fully migrated into the REST-based Sell Feed API The Sell Feed API supports the same XML data files that LMS supported but through REST methods. For more information, see the LMS Migration Guide.

The following three APIs are required for Large Merchant Services:

API Description
Merchant Data This API defines the data that can be passed to and from the eBay servers in files.
Bulk Data Exchange This API describes how to manage the Large Merchant workflow, such as starting, stopping, and checking the status of data processing.
File Transfer This API defines how to pass large amounts of data to and from the eBay servers.


The Trading API contains some calls that can be used within LMS data files.

API Description
Trading API This API defines the eBay Trading calls. Some of these calls can be passed to and from the eBay servers in files. See the 'Related Calls' section of the Merchant Data API for a list of the Trading API calls that can be used within LMS data files.

Copyright © 2008–2021 eBay, Inc. All rights reserved. This documentation and the API may only be used in accordance with the eBay Developers Program and API License Agreement.