Common TrafficCreator API Error Messages
- Authenticate API requests - Create and manage projects by API
| Status | Meaning | Fix |
|---|---|---|
| 400 | Invalid request — often a validation error like daily_limit must be greater than 0, a GTM/UA GA4 ID, or a bad combination of fields | Check the exact detail message in the response and correct the field it names |
| 401 / Unauthorized | Missing or invalid X-API-KEY header | Confirm the header is present and the key hasn't been regenerated |
| 403 | Action not permitted on this resource | Confirm you're operating on a project that belongs to your account |
| 404 | Resource not found | Confirm the project ID exists and belongs to your account |
| 500 | Unexpected server error | Retry; if it persists, contact support with the request details and timestamp |