Migrate set of users to Forest B which are already migrated to Office - Microsoft Community

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hello team,

currently hybrid setup in place aadconnect & mailboxes have been migrated office 365.

requirement 1 business unit want move different forest-b rest business units still sync existing forest a.

kindly suggest on procedure reconfigure users business unit move forest b still sync office 365 mailboxes.

hi exchange_support,

via description, understanding have synced unit of forest office 365 via aad connect. , requirement still sync unit office 365 after has been moved forest b. if so, recommended add forest b aad connect (sync server). can move unit forest b. please noted original office 365 mailboxes (synced unit a) should changed address of forest b (due unit moved forest b). 

regards,
alan



Office / Office 365 for admins / Exchange Online / Office 365 for business



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