Locked out of Azure AD due to changing external user to internal

ES 25 Reputation points
2026-03-27T16:36:52.04+00:00

I just converted my only Azure AD account from external to internal and now I can no longer see anything when I login with my email address. Can this be reset?

Microsoft Security | Microsoft Entra | Microsoft Entra External ID

Answer accepted by question author

Rukmini 43,095 Reputation points Microsoft External Staff Moderator
2026-03-27T17:17:24.43+00:00

Hello ES

You were unable to log in to the Azure Portal due to changes made to your user account’s internal/external status in Azure. You originally signed up for the Azure tenant using your personal Microsoft account email address (******@domain.com), which created an account in the format user123_domain#EXT#@user123domain.onmicrosoft.com. However, when you changed the account to an internal user, it was converted to @user123domain.onmicrosoft.com. As a result, whenever you tried to sign in using your original Personal Microsoft account email address (@domain.com), you received the AADSTS16000 error because no tenant could be found for that account.

I have shared the user details over the private message and try to login with that account and You will be able to log in again using your updated internal account email address by signing in with your password and setting up Azure MFA.

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