API Ahead · Amazon SP-API — 21–28 September 2026
What changed in the Amazon Selling Partner API between 21 and 28 September 2026, and what it means for your code.
8 additive · 2 API models touched
| Category | Count | |
|---|---|---|
| 🟢 | Additive | 8 |
Briefing
This week brings only additive updates – no breaking or silent‑risk changes – so existing integrations can keep running unchanged. If you plan to exercise Amazon’s sandbox for external fulfillment shipments, you’ll want to review the newly added model, schemas and endpoints.
Additive changes
A brand‑new model External Fulfillment / externalFulfillmentLocation_2026-07-30 is now available, alongside a suite of sandbox‑shipment types (CreateSandboxShipmentRequest, CreateSandboxShipmentResponse, MarketplaceId, SandboxShipmentUpdates, UpdateSandboxShipmentRequest). Two fresh endpoints let you create and patch sandbox shipments: POST /externalFulfillment/2024-09-11/shipments and PATCH /externalFulfillment/2024-09-11/shipments/{shipmentId}. If you intend to use these features, search your codebase for the schema names or endpoint paths to add the appropriate request/response handling.
🟢 Additive (8)
New surface area. Nothing breaks — read only if you're curious.
External Fulfillment / externalFulfillmentLocation_2026-07-30
- New API model published:
External Fulfillment / externalFulfillmentLocation_2026-07-30
External Fulfillment / externalFulfillmentShipments_2024-09-11
- New schema:
CreateSandboxShipmentRequest - New schema:
CreateSandboxShipmentResponse - New schema:
MarketplaceId - New endpoint:
PATCH /externalFulfillment/2024-09-11/shipments/{shipmentId} - New endpoint:
POST /externalFulfillment/2024-09-11/shipments - New schema:
SandboxShipmentUpdates - New schema:
UpdateSandboxShipmentRequest
⏳ Upcoming removals (next 90 days)
What Amazon removes in the next 90 days according to its official schedule. Not this week's changes: the reminder so the migration does not catch you out.
| Removal | Product | What goes away |
|---|---|---|
| 11 November 2026 | Report Type Values | GET_V2_SETTLEMENT_REPORT_DATA_FLAT_FILE, GET_V2_SETTLEMENT_REPORT_DATA_XML |
Sources: the OpenAPI models and the notification, report and feed schemas Amazon publishes, compared version to version; its official deprecations schedule and its changelog. Every change comes from one of these sources: nothing here is a guess.
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The OpenAPI models and schemas are © Amazon.com, Inc. or its affiliates, released under the Apache License 2.0. The deprecations schedule and the changelog belong to Amazon's documentation: we link to them and summarize them, never reproduce their content. This newsletter is an independent analysis of those public sources: it is not affiliated with, sponsored by, or endorsed by Amazon. Amazon and Selling Partner API are trademarks of Amazon.com, Inc. or its affiliates.