429 application/problem+json
application/problem+json. Branch on type (a stable URI), not on title
or detail (human-readable, may change).
When it occurs
You have reached the maximum number of concurrent in-flight export jobs. This is separate from the monthly export-row quota.How to fix
Wait for an in-flight export to finish (pollGET /v1/exports/{export_id}), then submit the new job. Respect Retry-After if present.
Retryable — retry with exponential backoff (respect Retry-After on 429/503).
See the full error catalog for the response shape and retry matrix.
Every response carries an x-request-id header — include it in any support request.