log problem for work account

Steven 1 Reputation point
2020-10-18T06:37:28.33+00:00

Dear Sir,
When I log in my work account , I need the approve a request on my Microsoft Authenticator app or use a verification code from my mobile app. But the question is I have already uninstalled the Microsoft Authenticator app before, now I install the app again, but I can't add the work account so that i can't get the verification code.
Please help me to solve the problem asap and i need to log in the work account.

Best wishes,
Steven

Microsoft Entra ID
Microsoft Entra ID
A Microsoft Entra identity service that provides identity management and access control capabilities. Replaces Azure Active Directory.
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  1. Manu Philip 16,901 Reputation points MVP
    2020-10-18T07:29:15.21+00:00

    You must tell your organization administrator to forget and unregister the old device. Then register the new device
    To remove the app from a device using a work or school Microsoft account. Go to the two-step verification area of either your MyApps page or your organization's custom portal to turn off verification for your old device.

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  2. VipulSparsh-MSFT 16,201 Reputation points Microsoft Employee
    2020-10-19T08:07:23.3+00:00

    @Steven You must add the Authenticator App to approve the sign in request. you must follow this link in order to add the Authenticator App to your device and your account : https://learn.microsoft.com/en-us/azure/active-directory/user-help/security-info-setup-auth-app#to-set-up-the-microsoft-authenticator-app

    It all starts with https://myaccount.microsoft.com/

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