stripe_subscription_failed
Stripe definitively refused the subscription. The durable operation records that refusal but no local subscription is created; a later corrected request reuses the same operation and provider correlation rather than creating a second one.
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/stripe_subscription_failed",
"title": "…",
"status": 502,
"detail": "…",
"instance": "/v1/…"
}