Status and error codes for the POST rule severity and action API
| Code | Message | 
|---|---|
| 201 | Created | 
| 400 | Input validation error | 
| 403 | Forbidden (authentication failed) | 
| 409 | Conflict (environment under deployment or policy upgrade) | 
| 420 | Resources not found (policy not found) | 
| 500 | Internal server error |