AD forest Merging

Royal D Costa 241 Reputation points
2021-09-20T09:58:26.77+00:00

I have been given a task to merge 3 AD forest and make it one. following is the current scenario

AD 1(forest A) - local AD for system login ,2300 Users

AD2 (forest B)- synced with Azure AD and has online mailboxes Windows Server 2016 -forest level 2016(previously on-premises exchange server now decommissioned) 350 users

AD3 (Forest C)- synced with Azure AD and has online mailboxes server 2012 R2- forest level 2012 R2 (previously on-premises exchange server now decommissioned) 2000 users

looking for expert opinion to merge all 3 AD s and make one without creating problem to system Login on desktops as well as cloud features like mail ,SharePoint etc.

Windows Server Migration
Windows Server Migration
Windows Server: A family of Microsoft server operating systems that support enterprise-level management, data storage, applications, and communications.Migration: The process of making existing applications and data work on a different computer or operating system.
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  1. Limitless Technology 39,351 Reputation points
    2021-09-20T13:06:45.137+00:00

    Hi there,

    You can try the Active Directory Migration Tool.
    https://www.microsoft.com/en-us/download/details.aspx?id=19188

    Their is also a thread that can explain you with the steps
    https://social.technet.microsoft.com/Forums/windowsserver/en-US/ef6ed877-3ed2-44e4-bd5b-76f8201e7f35/merge-multiple-forest-to-single-forest-tree?forum=winserverDS

    Hope this answers all your queries, if not please do repost back.
    If an Answer is helpful, please click "Accept Answer" and upvote it : )

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