Here's how to grant a user full access to your Admin console:
You must be signed in to your Google Workspace as a super administrator
In the Admin console, go to Menu > Directory > Users.
In the Users list, find the user.
For tips on finding users, check out: Find a user account
Click the user’s name to open their account page.
Click Admin roles and privileges.
Click the Super Admin role.
This displays a slider next to each role.
Next to the Super Admin role, click the slider so it's marked Assigned
Click Save.
The user typically becomes an admin within a few minutes. However, it can take up to 24 hours. When an admin with the Super Admin role signs in to their account, they arrive at the Admin console Home page.
Change your super admin
You must be signed in as a super administrator for this task.
If your organization has only one super administrator, follow these steps to transfer that role to a different user:
Assign the role to the new admin. Follow the steps above to Make a user a super admin.
Remove the role from the original admin. For details, see Remove Google Workspace administrator privileges.
These steps ensure that your organization always has at least one super admin.