Enable per-user Azure AD Multi-Factor Authentication

Sign in to the Azure portal as a Global administrator.
Search for and select Azure Active Directory, then select Users > All users.
Select Per-user MFA.
A new page opens that displays the user state, as shown in the following example.
Find the user you want to enable for per-user Azure AD Multi-Factor Authentication. You might need to change the view at the top to users.
Check the box next to the name(s) of the user(s) to change the state for.
On the right-hand side, under quick steps, choose Enable or Disable. In the following example, the user John Smith has a check next to their name and is being enabled for use:
Confirm your selection in the pop-up window that opens.
Optionally, you can go to Service Settings page to configure Trusted IP address and MFA method