Forum Discussion
JasonL
Aug 02, 2021Copper Contributor
Microsoft 365 Minimal or Cutoff Migration?
Hello, I am currently running an on-premises Server 2016 domain with Active Directory and Exchange 2016 with around 65 users. I am starting to plan for migrating our Exchange server to Microsoft...
- Aug 03, 2021You can re-enable sync after the migration, that's not a problem. Do note that if you plan to decommission Exchange, having AAD Connect in the mix puts you in an unsupported configuration. Every configuration involving dirsync/AAD Connect requires you to keep at least one Exchange box for management purposes.
Kevin Taylor
Aug 06, 2021Copper Contributor
Jason if you are syncing AD users via ADConnect then you should just do traditional Exchange Hybrid migration and not screw around with trying to decom exchange.
JasonL
Aug 06, 2021Copper Contributor
Thank you for the recommendation, Kevin. I have decided to do exactly that for the time being. Hopefully the backend administration settings are incorporated into Exchange Online at some point so this is no longer a concern for people who want to decommission Exchange entirely but still use on-prem AD. Seems like that's something that really should have been already included honestly.