receptionist_connections_raced
Another writer moved subscriptions.receptionist_connections while this request was deciding, so the compare-and-set in set_receptionist_connections refused and nothing local changed. Raised by PUT /v1/subscription/receptionist-connections. Losing this race is recoverable - refresh billing and re-send the absolute target - whereas letting a stale request win is not: it would revoke a connection another request already collected a full month for while the Stripe item billing it survives to renew. The customer retries; no operator action.
Problem shape
Every non-2xx response is an RFC 9457 application/problem+json body. The type URI below is stable and machine-matchable, so branch on the final path segment (the code) and treat the status as redundant confirmation. See the error-handling guide.
{
"type": "https://docs.vocapable.com/errors/receptionist_connections_raced",
"title": "…",
"status": 409,
"detail": "…",
"instance": "/v1/…"
}