If you have problems running GAT+ for the first time it is usually a simple problem. Don’t panic it is easy to fix.
Has a super admin from your domain ever used GAT+?
To check if GAT+ is already installed click on your Google Apps button and navigate to 3rd party apps section, you should see the GAT+ logo.
Alternatively, you can navigate to your G Suite Admin Console, go to Marketplace Apps, click on GAT+ name and make sure it’s ON for everyone and Data access is granted, this post will guide you through the process.
Still having problems, do you need a fresh trial license?
Is your domain trying GAT+ for the first time?
Navigate to the G Suite Marketplace the tool can only be installed by a G Suite Super Admin via the DOMAIN INSTALL button.
You can not install from an incognito window unless you are signed into your Super Admin account.
GAT+ should be installed in the root Organization Unit (‘/’ – marked as ‘On for Everyone’).
In GAT+ are some auditing areas empty?
Planning on using Email Delegation with GAT Unlock?
You can use GAT Unlock to remotely set mail delegation for any users account. As a Super Admin, you can give any user mail delegation access to another user’s account.
Navigate to Apps, G Suite, Settings for Gmail and click on User Settings.
Turn ON the option to set Mail Delegation.
Have you enabled Google Classroom auditing?
Launch G Suite Admin Console, and go to Apps, G Suite, Settings for Classroom and under the heading Data access enable Classroom API.