Replay and resend

Every delivery is replayable from the Webhooks dashboard. Use it to debug a handler after fixing a bug, or to resend a batch you missed during an outage.

1. Open Admin → Developer → Webhooks and click the endpoint.
2. Find the delivery in the Logs tab — filter by status, event type, or time range.
3. Click Replay. The request goes out with identical headers and body. The svix-id matches the original.

The endpoint page has a Replay missing button that re-delivers every event that hit a non-2xx response in the last N hours (you pick the window). Duplicates are safe — your idempotent handler keys on event.id.

For an arbitrary backfill, hit POST /api/v1/webhook_endpoints/:id/resend with an event id list. The dashboard equivalent is Replay selected after multi-selecting in the Logs tab.