Microsoft Authenticator
A Microsoft app for iOS and Android devices that enables authentication with two-factor verification, phone sign-in, and code generation.
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I changed phone to Samsung s24. And my Authentificator doesn't work. I can't open work email.
Thanks for your question.
You will need to contact your organizations IT admin to help re-register you for MFA to resolve this.
Them doing this will re-register you for MFA and you will need to re-enroll.
You can mark it 'Accept Answer' and 'Upvote' if this helped you
Regards,
Abiola