| Error Code | Message | Cause/Resolution |
|---|---|---|
| 400 | Invalid input | Check request parameters and payload. |
| 401 | Invalid or missing token | Provide a valid JWT in Authorization. |
| 403 | Access denied | Insufficient permissions. |
| 404 | Resource not found | Check endpoint and resource ID. |
| 429 | Too many requests | Wait and retry after rate limit window. |
| 500 | Internal server error | Contact support if persists. |