Date: March 16, 2026

Summary

Performance webhook integration is now generally available (GA), delivering the performance communications sellers receive by email to your application as webhook notifications. It supports daily actionable alarms and a weekly KPI report so you can automate follow-ups and monitoring in near real time.

What changed

Now GA: Performance webhook integration can be used in production.
Supported Performance notification types: payload.notificationType indicates the notification type (Allowed values: ALARMS, REPORT).
Predictable delivery cadence: ALARMS with daily shipping risks and actions are sent daily at 6:00 AM PT, and REPORT with KPI rollup is sent weekly on Mondays at 5:00 AM PT.
Production-ready implementation guidance: The API guide includes subscription setup, secure delivery and signature validation, retry behavior, and sandbox testing.

Why it matters

Faster response: Trigger operational workflows as soon as sellers need attention, instead of waiting for manual email review.
Automation-ready: Daily alarms provide actionable order-level signals, while weekly reports provide trend and risk context to power dashboards and coaching workflows.
More reliable integrations: Standardized signature verification, retries, and idempotency guidance help you run the webhook safely at scale.

Next steps

Create or update your subscription for SELLER_PERFORMANCE_NOTIFICATIONS using Create subscription and Update subscription endpoints.
Implement signature verification, replay window enforcement, seller authorization checks, and deduplication using a delivery identifier such as eventId or a documented delivery header.
Use sandbox test deliveries to validate routing for payload.notificationType and confirm retry and acknowledgment behavior before going live.
Refer to the Performance Webhooks API guide for more information.