Disable 2-Step Verification for your domain
Uncheck Allow users to turn on 2-step verification to prevent new enrollments or modification of existing enrollments. Users who have already enrolled would continue to be asked for a 2-Step Verification code.
Unenroll individual users
- In your Admin console, go to the Users page.
- Click an individual user.
- Unenroll the user by clicking Show more > Security.
This change takes effect immediately. The user also receives an automated email from Google explaining that they are no longer enrolled.