Users receive error in Authenticator

Hello @IT Lead,  

Good day! Thank you for posting your valuable question on Microsoft Q&A forum.   

The error message: 

Contact your admin  "You are required to register an authentication method to continue but none have been enabled for this account. Contact your admin for help." 

This typically occurs in Microsoft 365/Azure AD when Security Defaults or Conditional Access policies require Multi-Factor Authentication (MFA), but the affected accounts have no authentication methods configured and no option to register them because the admin hasn't allowed self-service registration. 

You need to enable registration for authentication methods:

Verify Security Defaults Status 

If Security Defaults are enabled in your tenant, MFA is enforced for all users, and they should be able to register authentication methods during sign-in.  

• Go to Microsoft Entra admin center: https://entra.microsoft.com/  > Entra ID > Overview >  Properties. 
• Check if Security Defaults are enabled. 
• If Security Defaults are ON and they still see the error, temporarily disable Security Defaults, allow them to sign in and register, then re-enable Security Defaults. 

If your organization use Conditional Access instead of Security Defaults, please process to the next steps. 

Enable MFA registration 

• Go to Microsoft Entra admin center> Entra ID  > Authentication methods. 
• Under Policies, ensure Microsoft Authenticator or other methods are enabled for the users: 
  • If the Target is All users, then process to the next steps. 
  • If not, please check if the Target users/groups contain the three users. 
  • Ensure the Enable status is Yes.

Manually add methods 

• In Microsoft Entra admin center > Entra ID > Users > Select the user > Authentication methods > Add a phone number or email manually. 

• Alternatively, you can ask the users to download the Authenticator app and manually add their accounts from there. 

Please let me know if you need any further assistance or clarifications on any steps. Thank you for reaching out to us! 

If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment". 

Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.