Turn On 2SV
- In your Google Admin console (at admin.google.com)...
- Go to Security > Basic settings.
- Under Two-step verification, verify that Allow users to turn on 2-step verification is checked. If not, check it and click Save.
- Click Go to advanced settings to enforce 2-step verification.
Select a date to enforce 2SV in order to give users ample time to enroll this out.