Azure B2b Authentication in Microsoft tenant not working

Ajay Dandage 0 Reputation points Microsoft Employee

I have configured multitenant access (as shown below) so that guest users can access the app service and my API's. Also configured scope for the impersonation,

User's image

When geust users are trying to access the site and app, they are getting below error, any help would be really appreciated

Error Code: 53003
Request Id: f7b173b0-ed2b-4708-a6e9-aaf9f3920700
Correlation Id: 3116c869-9ecb-40d3-9349-caa81e248078
Timestamp: 2023-03-16T05:31:06.770Z
App name: {My app name}
App id: {My app ID}
IP address:
Device identifier: Not available
Device platform: Windows 10
Device state: Unregistered

Azure Active Directory
Azure Active Directory
An Azure enterprise identity service that provides single sign-on and multi-factor authentication.
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  1. JimmySalian-2011 29,791 Reputation points


    Not sure if you have check Cross Tenant Sync Preview feature in Azure AD External Identities, I will suggest you to review this for collaborations.

    Btw please share your config for this B2B setup, so I can replicate the issue.

    Hope this helps.



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