Merge pull request #244536 from jpettere/patch-12

Update concept-authentication-authenticator-app.md

Author: prmerger-automator[bot]

articles/active-directory/authentication/concept-authentication-authenticator-app.md

@@ -25,7 +25,8 @@ Users may receive a notification through the mobile app for them to approve or d
 To use the Authenticator app at a sign-in prompt rather than a username and password combination, see [Enable passwordless sign-in with the Microsoft Authenticator](howto-authentication-passwordless-phone.md).
 
 > [!NOTE]
-> Users don't have the option to register their mobile app when they enable SSPR. Instead, users can register their mobile app at [https://aka.ms/mfasetup](https://aka.ms/mfasetup) or as part of the combined security info registration at [https://aka.ms/setupsecurityinfo](https://aka.ms/setupsecurityinfo).
+> - Users don't have the option to register their mobile app when they enable SSPR. Instead, users can register their mobile app at [https://aka.ms/mfasetup](https://aka.ms/mfasetup) or as part of the combined security info registration at [https://aka.ms/setupsecurityinfo](https://aka.ms/setupsecurityinfo).
+> - The Authenticator app may not be supported on beta versions of iOS and Android.
 
 ## Passwordless sign-in