Your default Sign-In method should be configured to push notifications, to ensure that you are prompted to sign-in using push notifications:
If you still don’t have MS MFA App configured, please follow the instructions below to do it now.
Step 1. Download and install the Microsoft Authenticator app
Step 2. Add your account to the app
Scan the QR Code in the app and test the push notification flow as part of this experience. For more information, see this guidance.
Step 3. Change default sign-in settings to the Authenticator app
To ensure that you are prompted to sign-in using push notifications:
Need more help? Contact us @VeriPark Servicedesk
Learn to register for MFA at https://aka.ms/mfatutor
Watch this training video: https://aka.ms/mfavideo