How to prevent users from enrolling 2-Step Verification with phone or text verification code

Problem

How do I restrict users from using the phone or text verification code when enrolling to 2-Step Verification.

Environment

  • Admin console 

Solution

  1. Sign in to the Admin console.
  2. Navigate Security > Authentication > 2-step verification on the left panel.
  3. Turn on the enforcement.
  4. Below Methods select Any except verification codes via text, phone call.
  5. Save the changes.