# DeviceConnect: Error Codes
Below table contains the constant name, error code value and the description of error code:
TIP
All the constants stated below are available as constants in SDK.
| Constant Name | Constant Value | Description |
|---|---|---|
| QUOTA_LIMIT_EXCEEDED | 7670 | API Key exceeded its quota limit |
| AUTHENTICATE_FAILED | 7671 | Authentication of the API Key and the User failed |
| AUTHENTICATE_API_FAILED | 7672 | Authentication of the API Key failed |
| AUTHORIZATION_API_FAILED | 7673 | Authorization of the API Key failed |
| NO_ACTIVE_NETWORK | 7678 | Device is not connected to an active network |
| NETWORK_TIME_OUT | 7679 | Request timed out |
| NETWORK_RESPONSE_NULL | 7681 | Network response is null |
| USER_TOKENS_NULL | 7682 | Both access token and refresh token is null |
| ACCESS_TOKEN_NULL | 7683 | Access token is null |
| REFRESH_TOKEN_NULL | 7684 | Refresh token is null |
| AUTHENTICATE_NOT_FOUND | 7685 | End point is not found |
Some error codes can be resolved by validating the implementation and some by retrying the creation of the user, while other error codes can only be resolved by contacting FinBox.