postmortem_not_found
Status page: this incident has no postmortem.
HTTP 404.
Likely cause: None was written, or it was deleted.
What to do: Write one with PUT /api/v1/incidents/{id}/postmortem.
Retry: No. The same request gets the same answer; change something first.
Listed under Status page API in Errors. Send the error’s requestId to support and we can find the request.