How to add someone to a Shared Drive in Google Drive.
Shared Drives in Google Drive allow your business to share documents securely with team members of a Share Drive with the right level of access for each member to do their work.
You must have manager-level access to add someone to a Shared Drive on Google Drive. If your access permissions are less than the Manager level, you won’t be able to add someone and instead will either need an existing Manager to increase your access level to Manager level or an existing Manager will need to add the new individual to the Shared Drive.
How you add a team member to a Shared Drive in Google Drive:
Firstly, you need to go to Google Drive on the web.
Once viewing Google Drive, click “Shared Drives” in the left column.
You'll now see all the Shared Drives to which you have access.
Right-click on the Shared Drive to which you want to add someone and select “Manage Members”.
Enter the person's email address and select the access level you want them to have. Then, select whether you want to send a notification, and click Send (if you selected notification) or Share (if you didn’t send a notification).
The Shared Drive you have added to them will now appear in their Shared Drives section of Google Drive.