Errors and retries
| Status | Meaning | What to do |
|---|---|---|
400 | Invalid request | Fix the request before retrying |
401 | Missing or invalid credentials | Check the server-side API key |
403 | Account or route not allowed | Review account permissions |
404 | Resource not found | Check the URL or resource ID |
429 | Rate limited | Back off and retry with jitter |
5xx | Temporary service failure | Retry safely with exponential backoff |
Error responses include a structured code and request_id for support investigations. Do not blindly retry a send request; use an idempotency key where supported.
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