Bulk enable Multifactor Authentication in Office 365 and configure mobile phones.

Hello,

I have enabled Multifactor Authentication using phone authentication for a user in the Office 365 portal.  

I am able to use the new app-code to sign to Outlook and OWA.  

My email account in my mobile phone still using the old password I think.  How is the new MFA app-code being applied to it?

Also, how do I enable MFA for group of users?  

Thanks.
nav2567Asked:
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Jackie ManIT ManagerCommented:
Are you using app or browser to access the office 365 account?

What kind of phone?
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Jackie ManIT ManagerCommented:
https://docs.microsoft.com/en-us/azure/multi-factor-authentication/multi-factor-authentication-versions-plans

Have a look of the link above. You need to acquire the appropriate licence before the users can use MFA.
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