meter_already_subscribed

The customer already has a live subscription item on this meter, so its usage events would be billed twice.

HTTP status400
Error typeinvalid_request_error
RetryNo. Fix the request.

What to do

Cancel the existing subscription first, or add the price to it instead of creating a second subscription.

Response shape

{
  "error": {
    "type": "invalid_request_error",
    "code": "meter_already_subscribed",
    "message": "…",
    "doc_url": "https://docs.borga.is/errors/meter_already_subscribed",
    "request_id": "req_…"
  }
}

See all error codes and how to handle them.