Deprecation: Seller Performance Refunds APIs

Date: March 26, 2026

Legacy Refunds API endpoints are being deprecated. While these endpoints will remain accessible during the deprecation period, they will be permanently removed, as Refund Rate is no longer included in Seller Performance Standards.

Sellers and solution providers currently using these endpoints should migrate to the replacement APIs to prevent any disruption.

What changed

The following Refunds performance endpoints marked as deprecated starting March 26, 2026:

• Refunds performance summary
• Refunds performance report

Deprecation timeline:

Deprecation begins: March 26, 2026

During the deprecation period, these endpoints may continue to return data; however, they are not recommended for use in new or existing integrations. Make sure you replace Refund endpoints with Return and Item Not Received endpoints:

Return Rate

• Returns performance summary
• Returns performance report (.xlsx)

Item Not Received Rate

• Item not received performance summary
• Item not received performance report (.xlsx)

Scope

This change impacts any integrations, reporting workflows, dashboards, or analytics that rely on the Refunds performance endpoints.

Why it matters

Once the deprecation period ends, calls to the Refunds endpoints will no longer be supported and may fail. Timely migration helps ensure uninterrupted access to performance insights and reduces the risk of integration issues.

Next steps

• Identify any integrations or reports using the deprecated Refunds endpoints
• Migrate to the Returns and Item Not Received endpoints
• Validate updated integrations in lower environments
• Complete migration as soon as possible to avoid service disruption

For additional guidance, review the Seller Performance API Guide to support a smooth transition.