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.
The Fulfillment Inbound Shipment API section of Amazon MWS is no longer available. For programmatic access to Fulfillment Inbound, use the Selling Partner API for Fulfillment Inbound.