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.
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 Stor...
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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