In regards to the Microsoft Authenticator passwordless sign-in method, has anyone else had trouble with it not sending push notifications to mobile devices? Such as reported here (https://github.com/MicrosoftDocs/azure-docs/issues/30680)?
I have enabled my user in my tenant using the new options in the Azure Portal, i had not previously tried to enable a policy using the PowerShell cmdlets as mentioned by fordantitrust above. My user now triggers the passwordless flow, however I have to manually open up the Microsoft Authenticator app to begin my interaction. I do not receive a prompt via a push notification.
Do I need to still execute the New-AzureADPolicy cmdlet to enable the push notifications? What is the impact of that policy, will it enable this preview for all my users who are using the Microsoft Authenticator app? Running the Get-AzureADPolicy cmdlet returns no similar policies in my tenant, which presumably would have been created if needed by the enabling of my user through the portal.
Update: Just in case someone else finds this, I resolved this issue by going into the Microsoft Authenticator app, choosing to "Disable phone sign-in" for my AAD Work Account, and then enabling it again right after. This updated the icon in the https://myprofile.microsoft.com portal from a normal MS Authenticator padlock icon, to a phone sign-in icon like you see in the app itself. After about half a day, the push notifications then started working for the passwordless sign-in flow. I'm guessing that as part of the preview, this particular flow of "a user has already hit the enable phone sign-in option in the app for the AAD user, before they are enabled for the passwordless sign-in flow" is not quite covered yet.