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• Using your default web browser, open the Microsoft 365 login page: https://portal.office.com
  
  

  Info
  title Important
  If you are already signed in with another Microsoft 365 Account, click on your profil icon and choose Sign in with a different account

   

• Log in with your OST account access data, which you received in the Welcome to OST e-mail to your private e-mail address

  
  
  
  
  

• Choose Next, install the Microsoft Authenticator app on your smartphone and then choose Next on your browser

  UI Expand
  title Alternatively you can set up SMS as default method

  
  
  
  

• Open the Microsoft Authenticator app, click the plus , choose Work or school account, then Scan QR-Code, choose Next on your browser
  
  
  
  
  
  
• Scan the QR-Code in your browser with your smartphone, the OST-Account will be added to the app and has to approved
  
  
  
  
• Multifactor authentication has been successfully set up, click Next and then Done
  
  

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