event_expired

A webhook delivery was abandoned because the event is past its retention (the delivery's `error`, not an HTTP status).

Not an HTTP error.

Likely cause: The endpoint stayed down longer than events are kept.

What to do: Reconcile from the API (positions, orders, history) instead of waiting for the event.

Retry: No. The same request gets the same answer; change something first.

Listed under Webhooks in Errors. Send the error’s requestId to support and we can find the request.