Return Codes
The MSP API for Business return codes are unique status codes designed specifically to capture the status of your API call and provide information about the reason for failure if the call is unsuccessful. The following tables introduce the recommended error handling methods, example error messages, and main causes for common error codes.
Return for successful calls
| Code | Description |
|---|---|
| 0 | Successful |
** Return for unsuccessful calls**
| Code | Description |
|---|---|
| 403 | Permission denied |
| 4031 | Not login |
| 4033 | Invalid access token |
| 4034 | Rate limit exceeded |
| -1 | Unknown error |