What it means
the job already left queued (also a bulk unchanged code).
How to handle it
Refresh the job; meta.status has already advanced beyond the state where cancellation is possible.
Wire contract
| Code | not_cancelable |
|---|---|
| Class | conflict |
| HTTP status | 409 |
| Meta keys | status |
| Raised | Yes |
The response uses the standard {"error": {…}} envelope. Branch on error.code, not the human-readable message. Preserve request_id when reporting a failure.