Active Directory
A set of directory-based technologies included in Windows Server.
5,843 questions
Configuring M365 one tenant with Parent-Child and Sub Tree Active forest structure
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GaMin An
41
Reputation points
Hello All,
I am looking for way to consolidate One M365 Tenant under mixed forest structuer as you see upper image.
First. Is this possible to get All domains - Contoso.com, Litware.contoso.com and Adata.com - together to one Microsoft 365 Tenant?
Second. If first concept is allowed technically, all separeted child and sub tree domain could have its own on-premise Exchange Server?
Third. After all domains consolidation, we are hybridzing all On-premise Exchange Server with M365, is this also possible?
I think I have already reviewed many of documents provided on Microsoft Doc web site, so as much as possible you could, I want to hear real practice you have experienced before. But, url links, yeah they would be also helpful.
Thanx.
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Marilee Turscak-MSFT 33,801 Reputation points Microsoft Employee2021-05-07T22:24:30.157+00:00 It depends on how you want to accomplish this, as this can end up being a pretty complicated scenario. It may be worth speaking directly with an Azure AD consultant to go over the details.
If you have multiple tenants, each DNS domain can only be registered in a single tenant. If you have several local Active Directory forests and you want to sync all forests into a single tenant, you can only have one Azure AD Connect instance that will have to have access to all the local AD forests.
Having more than one Azure AD Connect sync server connected to a single Azure AD tenant is not supported.
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