Hi, The error code AADSTS90072 is due to the external account that the user signs in with doesn't exist on the tenant that they signed into; so the user can't satisfy the MFA requirements for the tenant. The account must be added as an external user in the tenant first. Sign out and sign in with a different Microsoft Entra user account. For more details, please view this link: Urgent Solution to fix this error message (AADSTS90072) - Microsoft Q&A Best Regards, Hana
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