Overview

In August 2022 Amazon released an updated version of the Selling Partner API (SP‑API) that adds new order‑status data for Easy Ship shipments and two fresh endpoints that expose delivery‑slot capacity. The changes let sellers pull precise shipment stages and programmatically check how many slots are open for a given date or time window, which is critical for anyone who relies on Amazon‑fulfilled logistics to keep delivery promises.

Key Points

• EasyShipShipmentStatus enum — A new field now appears in the order payload, indicating the exact stage of an Easy Ship order such as Pending, InTransit, Delivered or Cancelled.
• getRangeSlotCapacity endpoint — Returns capacity numbers for every delivery slot inside a requested date range, using the same schema as the existing slot‑availability records.
• getFixedSlotCapacity endpoint — Provides capacity information for a single, explicitly identified slot, enabling pinpoint‑level planning.
• Orders API v0 payload expansion — The added shipmentStatus attribute enlarges the order response, removing the need for separate carrier‑tracking calls.
• Services API v1 extension — The two capacity‑related calls are added under the Services namespace, turning a UI‑only view into a fully automatable data source.

How the New Features Work

1. EasyShipShipmentStatus enumeration —

   • When a seller queries the Orders v0 GET /orders/v0/orders endpoint, the JSON response now contains a shipmentStatus property.
   • For example, an order that has left the carrier’s hub will return "InTransit", allowing the seller’s system to automatically fire a “your package is on the way” notification without consulting an external tracking API.

2. getRangeSlotCapacity operation —

   • Sellers issue a request, supplying a start date, an end date, and the marketplace ID.