How to change Microsoft Authenticator from old phone to new phone?

Question

How to change Microsoft Authenticator from old phone to new phone?

Gill Kemmis 35

Have a new iphone (17), and need to transfer the authenticator to the new device (and get rid of it on the old phone).

My Microsoft account is an organisation account (belonging to my own company), not a personal account.

Moved from: Microsoft Security | Microsoft Authenticator

Casia 0 Reputation points

2026-01-12T06:43:00.72+00:00

I have the same problem
Lianny Montanez 0 Reputation points

2026-01-12T07:31:28.7666667+00:00

literally same. Just transferred all my data from my old phone (14) to the 17 and now I can’t log into anything because my Authenticator isn’t working

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Casia 0 Reputation points

2026-01-12T06:43:00.72+00:00

I have the same problem
Lianny Montanez 0 Reputation points

2026-01-12T07:31:28.7666667+00:00

literally same. Just transferred all my data from my old phone (14) to the 17 and now I can’t log into anything because my Authenticator isn’t working

Answer 1

Dear Gill Kemmis, Casia, Lianny Montanez,

Thank you for posting your question in the Microsoft Q&A forum.

Based on your description, you’re unable to transfer Microsoft Authenticator from your old phone to your new one. I understand how stressful this situation can be - especially when it affects your ability to sign in - and I’m sorry you’re experiencing this inconvenience.

Since your account is an organizational (work or school) account, rather than a personal Microsoft account, the quickest resolution is to contact your IT administrator or a Global Administrator for your Microsoft tenant. They can revoke your existing MFA registration and help you re-register Microsoft Authenticator on your new device by following the steps below:

Sign in to entra.microsoft.com using the Global Administrator account
Go to Identity > Users > All users
Select the affected account > Authentication methods
Reset MFA for the user (Manage authentication methods for Microsoft Entra multifactor authentication)

Note: Resetting MFA will sign the user out of all sessions and require MFA to be set up again.

Please let me know if you need help explaining this process to your IT administrator or if you have any additional questions.

Thank you for your patience and understanding.

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Daniel-Vo 2,930 Reputation points Microsoft External Staff Moderator

2026-01-14T12:52:29.33+00:00

Hi Gill Kemmis, Casia, Lianny Montanez,

I would like to follow up on your issue and see if you have more questions. Looking forward to your reply!
Gill Kemmis 35 Reputation points

2026-01-15T00:32:38.5733333+00:00

Thanks for checking in Daniel-Vo.

I have reasonable IT skills but couldn't manage to sort out the Authenticator on the multiple accounts (including client accounts I access for work) so contacted the support team. Emmanuel was able to help me set up a Test account and then re-set the various sign ins. Thank you Emmanuel :)

So no further questions at this stage.
Daniel-Vo 2,930 Reputation points Microsoft External Staff Moderator

2026-01-15T07:00:17.5433333+00:00

Hi Gill Kemmis,

It is great to hear that your issue has been resolved. One more tip: you should have at least two Global accounts in case you lose access to one of them. Wishing you a pleasant day.

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How to change Microsoft Authenticator from old phone to new phone?

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