Customer request block YOUTUBE and permit Google drive APP but feedback Firewall block YOUTUBE also block Google drive APP.
Check the firewall session, finding Google drive APP is blocked by firewall predefined application “YOUTUBE”.
Do capture, finding that Google drive APP use YOUTUBE account, it is not misunderstanding for YOUTUBE belongs to Google Company.
Create a application to permit Google drive app as below:
Then deny YOUTUBE with the predefined application in the security policy.
After this, you can access YOUTUBE but cannot watch the video. Of course, the Google drive APP works well.