MS Multitenant User Activity Visibility Issue

Question

There is a domain named xxxx.de (Domain A) that operates within a multi-tenant organization. A second tenant, yy.xxxx.de (Domain B), has been invited into this organization. Domain A is the main tenant under which we have different domains.

The synchronization between the two domains is successful, and user activity along with calendar information is visible in MS Teams and Outlook for users in Domain B. However, user activity and calendar status for individuals in Domain A are not visible from Domain B.

Efforts have been made to investigate the issue by checking External Access Configuration, B2B Collaboration Settings, and User Synchronization, but a resolution has not been found. Any guidance on how to address this visibility issue would be appreciated.

Thanks in advance!

Answer 1

Hello The_8,

Domain A (parent domain) is with your multi-tenant organization and Domain B(sub-domain) is in another and users from Domain B are invited and these users are not able to see the calendar of users in Domain A and you have verified External Access Config, B2B collab settings and User Sync settings.

Now, the issue is user calendar info from Domain B to Domain A is visible and calendar info from Domain A to Domain B is not visible.

I suggest you to modify inbound access settings in domain A (parent domain) and add Microsoft Teams and it's dependencies to share Calander.

Ref:

https://learn.microsoft.com/en-us/entra/external-id/cross-tenant-access-settings-b2b-collaboration#modify-inbound-access-settings

To share Calander, please review the below screenshot and document to understand the dependencies.

https://learn.microsoft.com/en-us/entra/identity/conditional-access/service-dependencies#policy-enforcement

I suggest you to check if cross-tenant access policies are configured to share Microsoft Teams and Calander sharing.

Please login to Entra ID portal (Domain A) and navigate to - External Identities - Cross-tenant access settings

Under Organizational settings, Sub-domain (Domain B)

Ensure that:

Under Inbound access, Tenant B’s users are allowed to see presence and profile data

Under Outbound access, Tenant A’s users are allowed to send presence and calendar data to Tenant B

Please let us know if you have any queries.