Hi @TakuyaOmi,
It is not possible to add a group to the Databricks-managed 'admins' group directly. Only users or service principals can be added to the 'admins' group.
To grant Workspace Admin permissions to a group, the account admin must use the Account Console. Here are the steps you can follow:
- Log in to the Account Console: As an account admin, log in to the Databricks account console.
- Navigate to User Management: In the sidebar, click on "User management."
- Select Groups: Click on the "Groups" tab.
- Add Group: Click "Add Group" to create a new group or select an existing group.
- Assign Roles: Assign the Workspace Admin role to the group. This can be done by selecting the group and then assigning the appropriate roles.
Alternatively, you can manage group roles using the Accounts Access Control API if you prefer to automate this process
https://docs.databricks.com/en/admin/users-groups/groups.html