Forum Discussion
Azure AD connect with existing O365 user accounts
Oh sorry, tantonyrei!
My reply was based for a 100% cloud environment. My bad.
Did you already setup the exchange hybrid? Which kind?
If your domain is already working with the onprem environment and you setup the hybrid configuration correctly, should work perfectly.
Let me share with you some articles:
https://learn.microsoft.com/en-us/exchange/hybrid-deployment/deploy-hybrid
https://learn.microsoft.com/en-us/outlook/troubleshoot/authentication/outlook-prompt-password-modern-authentication-enabled
And here you can test the connectivity in order to see if something is wrong:
https://testconnectivity.microsoft.com
- Since my over all goal is to migrate users from on premise Exchanger 2013 to Exchange online, do I have to use hybrid? I was going to use CodeTwo software for the migration.
You don't have to use hybrid, here's an article on the possible migration scenarios.
- I only have about 100 mailboxes, so it looks like I can do cutover migration. I was already looking at CodeTwo for migration. But to before using CodeTwo, I have to first add my domain to Office 365 admin center right?
Hi tantonyrei,
It depends of the number of mailboxes that you need to migrate and how will you plan it.
Find in the following link information about the different migration possibilities and their limitations:
https://learn.microsoft.com/en-us/exchange/mailbox-migration/decide-on-a-migration-path
