Amazon Services
Amazon Marketplace Web Service (Amazon MWS) Documentation

Deprecation Notice:

Amazon Marketplace Web Service (MWS) will no longer be available after March 31, 2024. All MWS developers must migrate to Selling Partner API (SP-API) to avoid service disruptions.

Amazon MWS Documentation

ListSubscriptions

The Subscriptions API section of Amazon MWS is no longer available. For programmatic access to subscriptions, use the Selling Partner API for Notifications.