How to sign in Admin account?

Hayeon Park 40 Reputation points

I'm the admin of my company account but I can't sign in since I've changed my phone.

All the signing in information on Authentication app has been removed, so I can't sign it.

I even have not registered other method of signing it. (phone number, etc)

Would you please help me to figure out this issue?

Thank you in advance.

Microsoft Authenticator
Microsoft Authenticator
A Microsoft app for iOS and Android devices that enables authentication with two-factor verification, phone sign-in, and code generation.
5,826 questions
Windows 365 Business
0 comments No comments
{count} votes

Accepted answer
  1. Dave Patrick 426.3K Reputation points MVP

    Sounds like you'll need the account admins to reset the account so a new QR code can be generated with which you can relink the authentication device to your account.

    If you are the admin (and blocked) then you can reach out to 365 global customer service here.

    --please don't forget to close up the thread here by marking answer if the reply is helpful--

    1 person found this answer helpful.

1 additional answer

Sort by: Most helpful
  1. Crystal-MSFT 44,931 Reputation points Microsoft Vendor

    @Hayeon Park, Thanks for posting in Q&A. For your issue, you can try to add the admin work account on the authenticator app on your new phone to help you sign in. Here is a link with more details:,authentication%20account%20in%20the%20app.%20...%20More%20items

    Hope the above information can help.

    If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".

    Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.