subscription.plan_not_available

Target plan is not a plan of the product, is not mapped to a Marketplace plan of the **same offer and source**, or is not in Microsoft's listAvailablePlans for the subscription.

Code	`subscription.plan_not_available`
HTTP status	422
Category	`Unprocessable`
Arguments	`plan`

What the portals show

The portals translate the code, never the title. The English (en-GB) message, in ICU format with the arguments as placeholders:

That plan cannot be chosen for this subscription.

Example response

application/problem+json

{
  "type": "https://docs.test.konsolutelab.uk/errors/subscription.plan_not_available",
  "title": "…",
  "status": 422,
  "code": "subscription.plan_not_available",
  "args": {},
  "traceId": "00-4bf92f3577b34da6a3ce929d0e0e4736-00f067aa0ba902b7-01",
  "instance": "/api/v1/…"
}

Handling it

Branch on code, not on title or the status alone, and log traceId. Codes are stable; new codes may appear, so fall back on the HTTP status for a code you do not know. See Handling errors and the list of codes.