MS 365 email access on Android Outlook | Error "ADSTS50020: User account '' from identity provider '' does not exist in tenant 'Microsoft' "

Gaurav Agrawal 5 Reputation points

User is unable to access her MS 365 email on MS Outlook (mobile). The mailbox is empty on the Mobile Outlook. She can see all her emails on her computer (Desktop Outlook)

While authenticating through MFA, below is the error message.

ADSTS50020: User account '' from identity provider '' does not exist in tenant 'Microsoft' and cannot access the application '405e80fc-f8e6-40e6-b6b9-e5bcc7e6813e'(RedirectionUxProd) in that tenant. The account needs to be added as an external user in the tenant first. Sign out and sign in again with a different Azure Active Directory user account.

Microsoft Exchange Online
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A Microsoft app for iOS and Android devices that enables authentication with two-factor verification, phone sign-in, and code generation.
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Azure Active Directory External Identities
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3,691 questions
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  1. Jame Xu-MSFT 4,056 Reputation points

    Hi @Gaurav Agrawal ,

    You could refer to this document:

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