idempotency_conflict
HTTP 409, application/problem+json. When: same Idempotency-Key with another body, or still in progress.
What to do
The Idempotency-Key was already used with a different request body, or the first request with this key is still being admitted. In the second case retry shortly; in the first, use a new key.
See all codes on Errors. Include the request_id when you contact support.