After enabling Multi-Factor Authentication (MFA) on Office 365, you may need to manage MFA for a user. This article shows you how to enable/disable, enforce and manager user settings.
1. Sign into the Microsoft 365 admin center with global admin credentials.
2. Click on Users.
3. In the Multi-factor Auth status, select the options such as Any, Enable, Forced.
4. Check the username you want to manage.
5. You will have options to Disable/Enable, Enforce and Manager user settings.
6. If you click on Manage user settings, you will have these options: Require selected users to provide contact methods again, Delete all existing app passwords by the selected users, and Restore multi-factor authentication on all remembered devices.
Please view this step by step video: