To enable Security & Audit you will first need to log in to GSX 365 Usage as an Administrator and click the Profile and Settings link on the left hand navigation menu.
Now click the Security & Audit tab.
To enable Security & Audit, click the blue button as shown. This will take you to the Microsoft Office 365 Login page to authenticate your account and enable the application.
Please note: It may take up to 72 hours from when it is enabled for discovery events to arrive within the application.
Sign in with a Global Administrator account when prompted.
If you accept the permissions, click the Accept button.
You will now be re-directed back to the GSX 365 Usage for Security & Audit application where it will check for the permissions to be granted and enable the application.
Once the permissions have been granted you will be able to use the Security & Audit application.