Hello.
our business has recently began using O365, initially only on a small scale with around 12 users at the moment, but soon this will grow to over 60+ making use of Exchange, lync & sharepoint along with the standard office applications.
we currently host Exchange 2013 on premise but have configured an Exchange hybrid deployment, with a view to do a full migration to Exchange online soon.
Adding to this we are also in the process of preparing to migrate to a new domain in a new forest.
AD Sync is currently configured and my concern is that when i migrate the users over to the new domain and also migrate AD sync over to the new domain, the AD sync will no longer function correctly and users will loose access to there O365 accounts including emails.
thankfully our ADSync syncs users are matched on there UPN suffix, and this will remain the same in the new domain.
My question is.
is it possible to migrate ADSync to a new domain for instance Contoso.com -> fabrikam.com and users retain there existing O365 profiles and exchange online mailbox's if so is there any documentation / guides you could provide.
Many Thanks