User created in Azure AD can't log into Microsoft Account, "That Microsoft account doesn't exist. Enter a different account or get a new one."

Nadine 1 Reputation point
2021-02-22T08:02:01.743+00:00

I have created a new user from Azure AD, linked to a new email address on my company domain. That all went successfully in Azure AD.
This new user is unable to access his Microsoft Account through account.microsot.com with these credentials, because of this error:
"That Microsoft account doesn't exist. Enter a different account or get a new one."

I can't create a new Microsoft Account through account.microsot.com (and I don't want to anyway) because of this error:
"You can't sign up here with a work or school email address. Use a personal email, such as Gmail or Yahoo!, or get a new Outlook email."

I already have existing users on this AD, all with company domain email addresses, all of which are able to access their own Microsoft Account linked to that email address.

What's up?
Thanks

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. James Hamil 22,886 Reputation points Microsoft Employee
    2021-02-22T21:57:08.673+00:00

    Hi @Nadine , I believe this is because users are not allowed to create a new personal account with a work or school address. More information can be found here: https://mspoweruser.com/microsoft-finally-blocking-users-creating-microsoft-account-work-email-address/

    If you have any questions please let me know. Otherwise, please mark this answer as verified so other users may reference this thread.

    Thank you,
    James

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