Currently:
We used to have exchange On-Prem. Then i migrated everything over to O365, but it was a clean O365 setup. No Hybrid scenario.
Exchange On-Prem has been decommissioned and uninstalled. All email are in O365.
No AD connect utility running.
What i want to do:
Enable AD Connect for password and user synchronization of On-Prem users to O365.
Hesitations/Questions:
Will enabling AD Connect disable O365 admin features and will i need to use powershell as i keep reading online even though these are two separate instances and there are no dependencies of O365 to onprem.