Forum Discussion

Copper Contributor

Jul 25, 2018

Same users but new domain with AD Connect...

Hi, I explain my future problem;) but I can't find information about it I have a local AD that is synchronized with Azure AD connect for my Office 365 (Exchange Online) accounts. I will change my l...

office 365

jcgonzalezmartin

MVP

Jul 25, 2018

One way, and I'm not an expert on this topics, is just stop to sync your AD with Office 365 so all your users will be cloud users, do the migration and then setup up again AD Sync with Azure AD Connect

Alexis MONIOT
Copper Contributor
Jul 25, 2018
Thanks for your reply,
I did not know that disconnecting AD sync, O365 would convert accounts to Cloud account.
it would be really good :)
however, when I'm going to reconnect the AD sync with my new domain, how will it link to the cloud accounts and accounts of my new AD? just with the email address? the SID is not the unique reference as locally?
- VasilMichev
  MVP
  Jul 25, 2018
  After you are finished with the migration, you can prepare the user objects in order to "match" them against the users already existing in O365. You have two options:
  
  1) Soft-match, based on the primary SMTP address: http://support.microsoft.com/kb/2641663. This will require you to clear the immutableID first.
  
  2) Hard-match, based on the objectID: http://blogs.technet.com/b/praveenkumar/archive/2014/04/12/how-to-do-hard-match-in-dirsync.aspx
  
  Both methods will yield same results, after you re-enable DirSync the accounts should be "linked".