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Beginner's mistake : convert the only one user to internal

Michel LAVALLERY 20 Reputation points
2026-06-03T12:46:18.37+00:00

Hello,

I just created my student tenant.

I linked my student email with my Microsoft account.

When browsing the entrance ID I saw this beautiful button on the only user I had. So I tried to convert my external user to internal.

Obviously I lost my access. Now there is nothing I can do.

Is there a possibility for MS's support to :

  • Reset my setting to start ?
  • create another user so I could use it to correct my situation
  • Destroy my tenant so I could recreate it ?
  • I would take any other ideas

But just to be clear, there is nothing I can do on my side.

Microsoft Security | Microsoft Entra | Microsoft Entra External ID
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Answer accepted by question author

Sridevi Machavarapu 32,000 Reputation points Microsoft External Staff Moderator
2026-06-03T12:58:36.25+00:00

Hello Michel LAVALLERY,

It seems like you are 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 Outlook email address (******@outlook.com), which created an account in the format user123_outlook#EXT#@user123outlook.onmicrosoft.com. However, when you changed the account to an internal user, it was converted to @user123outlook.onmicrosoft.com. As a result, whenever you tried to sign in using your original Outlook email address (@outlook.com), you received the AADSTS50020 error because no tenant could be found for that account.

I have shared the more details over private message. Please check and login with that UPN.

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.

Hope this helps! Feel free to reach out for any further queries

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