How to solve the “Authorization failed” problem in the initial configuration

The initial setup of CubeBackup is a little complicated, and some of our users might run into the “Google Apps authorization failed!” error when clicking the “Test” button in the initial configuration of CubeBackup. If you have carefully followed the instructions at https://www.cubebackup.com/first-time-run.html, but still failed to pass the authorization test, please check the followings steps: […]