SP-API Updates: Simplified Authorization for Service Providers, External Fulfillment Sandbox Changes, and Multi-Invoice Support Changes for the Brazil Amazon Store
Amazon is rolling out SP-API updates throughout 2026, including a three-step consent model for service providers on August 19, 2026, and a dynamic External Fulfillment sandbox on September 1, 2026. Additionally, the Brazil marketplace will implement multi-invoice support on September 30, 2026.
Back to All This week's SP-API updates include a simplified authorization flow for Service Providers, External Fulfillment API sandbox environment transition from static hardcoded responses to fully dynamic responses, and updates to getInvoiceStatusoperation for multi-invoice support for Brazil (BR) Amazon Store.
- New simplified authorization flow for service providers
- External Fulfillment API sandbox transitions to dynamic responses
- Updates to the getInvoiceStatusoperation for multi-invoice support in the Brazil Amazon store
New simplified authorization flow for service providers
Starting August 19, 2026, a simplified Seller Central authorization experience makes it easier for sellers to grant your service access to their accounts. Sellers can now grant permissions in just three steps, scoped directly to the services you're qualified for. Sellers can authorize your service through three methods:
- Authorization link: From your Solution Provider Portal (SPP) account, generate your unique authorization link and share it directly with any seller you work with. When a seller uses your link, they'll have access to a consent page where they can select the roles that they want to grant and authorize.
- Authorize button on Service Provider Network (SPN): If you have an active SPN listing, sellers browsing your detail page can now select Authorize Provider to take them through the same consent flow.
- Manage service requests dashboard: If you have an existing SPN request, sellers can go to the Manage Service Requests dashboard and select Authorize Provider for that request. 📘
Note
For authorizations through your SPN listing, you must confirm the order status for your authorization to become active.
Which Amazon stores are affected?
This change applies to all marketplaces.
Who is affected?
Third-party service providers listed on the Service Provider Network (SPN) or registered in the Solution Provider Portal (SPP) are affected by this change.
What action is required?
To start using the authorization link:
- Sign in to Solution Provider Portal .
Analysis & Recommendations
Why This Matters
Developers must transition from static to dynamic sandbox testing and update Brazil-specific data parsing to handle the new 'orderInvoicingStatus' field. Failure to adapt to the 'one order, multiple statuses' architecture will result in inaccurate tax reporting and service interruptions.
Key Takeaways
- Service providers will transition to a streamlined three-step consent model starting August 19, 2026.
- The External Fulfillment API sandbox will move from hardcoded data to a dynamic response model on September 1, 2026.
- The Brazil (BR) marketplace will support multiple electronic invoices (NF-e) per single order starting September 30, 2026.
- A new 'orderInvoicingStatus' field will be introduced to aggregate statuses like Processing, Accepted, PartiallyAccepted, or Rejected.
Recommended Actions
- →Rewrite Brazil Delivery Shipment Invoice API logic to process the new 'orderInvoicingStatus' field and 'invoices' array.
- →Design new test cases for Multi-SKU and Cross-Border shipment types to prepare for the September 2026 sandbox migration.
- →Review current service qualifications within the Solution Provider Portal (SPP) to ensure correct permission scoping.
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