Errors Message/Reasons 404 Not Found Queried parameter or ID does not exist in the given project or discipline. 401 Unauthorized Given authorization token or header is not valid. Login user does not have permissions to access the given API. 404 Bad Request When a mandatory parameter is not passed in the body of the API. When a given parameter is not valid. For example: either the parameter is of different data type or length exceeds the allowed limit. When an incorrect URL is provided.