# DeviceConnect: Error Codes
Below table contains the constant name, error code value and the description of error code:
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.