API Ahead · Amazon SP-API — 15–22 September 2026
What changed in the Amazon Selling Partner API between 15 and 22 September 2026, and what it means for your code.
8 additive · 1 announcement · 1 API model touched
| Category | Count | |
|---|---|---|
| 🟢 | Additive | 8 |
| 📣 | Amazon announcements | 1 |
Briefing
No breaking or silent‑risk changes landed this week, so existing integrations will continue to operate unchanged. The release does add a handful of new External Fulfillment models, schemas, and endpoints, and Amazon announced two extra enum values for the Germany Merchant Fulfillment API that will be enforced from Oct 1 2026.
No breaking or silent‑risk changes
There are none. Your production code does not need to be updated to stay functional.
Additive changes
A new External Fulfillment / externalFulfillmentLocation_2026-07-30 model is now published, along with several sandbox‑related schemas (CreateSandboxShipmentRequest, CreateSandboxShipmentResponse, MarketplaceId, SandboxShipmentUpdates, UpdateSandboxShipmentRequest). Two new endpoints have been added to the External Fulfillment shipments API: POST /externalFulfillment/2024-09-11/shipments and PATCH /externalFulfillment/2024-09-11/shipments/{shipmentId}. If you generate client code from the OpenAPI spec, regenerate it to expose the new types and paths; otherwise, grep your repository for the newly introduced identifiers (e.g., CreateSandboxShipmentRequest, /externalFulfillment/2024-09-11/shipments) to see if any custom handling needs to be added.
Announcement
Starting 1 Oct 2026, the Germany Merchant Fulfillment API will accept the enum values DeliveryConfirmationWithIdentityCheck and DeliveryConfirmationWithNameVerification for the delivery‑experience fields, so any client that validates those enums must be updated to include the new options or risk request rejection.
🟢 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
📣 Amazon announcements (1)
What Amazon published in its changelog. Link and date; the summary is ours.
- New Enum Values for Domestic Shipments in the Germany Amazon Store · 16 September 2026
⏳ 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 line carries its link: nothing here is a guess.
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The OpenAPI models are © Amazon.com, Inc. or its affiliates, released under the Apache License 2.0. This newsletter is an independent analysis of those public models: 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.