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Microsoft Dynamics 365 | Integration, Dataverse...
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Cross tenant Exchange Online integration

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Having always previously implemented Dynamics 365 Customer Engagement applications server-side integration with Exchange Online  when both platforms are in the same M365 tenant, now looking at scenarios where cross-tenant integration (i.e. D365 and Exchange Online on different M365 tenants) might be required.

 

I understand that there are some limitations or constraints imposed when integrating these platforms across tenants such as the Dynamics 365 App for Outlook not being support. That does not present a major concern.

 

What I can’t seem to get an understanding of how do identities work in these cross tenant scenarios?  How do the platforms know that User1 in tenant A is User2 in tenant B in order to properly synchronise Emails, Appointments  etc.  Is this something that has to be configured in some form of user profiles?

 

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