How to enable Multi-Factor Authentication (MFA) in Microsoft 365


Step by step instructions on how to enable Multi-Factor Authentication (MFA) in Microsoft 365. Global Administration rights are required to implement MFA. If you do not have these assigned to your Admin user then please contact our Support Team. 


  • Visit 
  • Login using the Microsoft 365 Admin Credentials (Instructions on how to do this can be found here)
  • Once logged in, proceed to click the Admin Icon in the top left hand corner mceclip0.png
  • On the left hand side, click Users then click Active Users
  • Click Multi-factor authentication
  • You will notice that a new tab will open with the following - 


  • Select the required account and select the appropriate checkbox next to the user name and click Enable
  • After clicking Enable you will be presented with the following screen -




  • Click enable multi-factor auth
  • Open the security verification page by using the link
  • Sign in using the mailbox credentials that you have just enabled MFA against
  • Click Next



Microsoft offers two main types of MFA:

  • Authentication phone: SMS or call
  • Microsoft Authenticator Mobile app: Receive notifications for verification or use verification code

It is up to you on which method of authentication you would like to use but for the purpose of these instructions, we will be using Phone.

  • Click I want to set up a different method


  • Click Confirm
  • Select the country code and enter your phone number



  • You will receive a text message containing the Verification Code
  • Enter the Verification Code and click Next




  • Click Next



You have now successfully configured Multi-Factor Authentication for your mailbox. You will be presented with the following screen the next time you sign into your service - 






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