Walmart Seller Performance Report Adds Five Metrics
Walmart will update the Marketplace seller performance report with Negative Feedback, Item Not Received, Late Shipment, and two returns metrics, while removing Refunds.
What are the key facts?
- 1Three metrics added from September 14, 2026
- 2Two returns metrics added from October 19, 2026
- 3Refunds metric removed
- 4Changes affect API, ERP, and data dashboard users
What happened?
Walmart announced an expansion of the Marketplace seller performance report. Starting September 14, 2026, the report will add Negative Feedback Rate, Item Not Received Rate, and Late Shipment Rate. Starting October 19, 2026, it plans to add Returns - New and Returns - Resold and remove the discontinued Refunds metric. The changes primarily affect sellers and service providers using the Walmart Marketplace API, third-party ERPs, order management software, and data dashboards. They may not immediately change seller rating thresholds, but they will change how account health is monitored, returns issues are identified, and operational alerts are generated. Cross-border sellers need to review API field mappings, Webhook notifications, report extraction, and historical data logic to prevent errors or missing reports caused by systems that continue to rely on the Refunds field. Sellers of home goods, apparel, electronics, and high-return-rate categories should also track Item Not Received, Late Shipment, Negative Feedback, and new and resale returns separately.
What does this mean for cross-border sellers?
Walmart will change Marketplace performance report fields in phases on September 14, 2026, and October 19, 2026, adding delivery, feedback, and returns metrics and removing Refunds. Sellers using APIs, ERPs, order management software, or data dashboards should review field mappings, Webhooks, report extraction, and historical logic in advance to avoid errors or missing reports.
What should sellers do now?
- 1This week, check references to the Refunds field in the Walmart Marketplace API, third-party ERPs, order management software, and data dashboards. Create a replacement list and confirm that reports no longer depend on the field after its removal.AI Customer Service
- 2Before September 14, 2026, create field mappings and Webhook test records for Negative Feedback Rate, Item Not Received Rate, and Late Shipment Rate. Complete data capture and display validation for all three metrics.
- 3Before October 19, 2026, add Returns - New and Returns - Resold to reports and weekly reviews, and mark home goods, apparel, electronics, and high-return-rate categories separately.