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The question nobody dares to ask! How do you create a new user in a hybrid environment.
The best practice is whatever works for your user management workflows. You can create it either way. In a hybrid you can move mailboxes back and forth whether they were created on-prem or in the cloud.
One caveat with New-RemoteMailbox is that it can't do Shared mailboxes. Those you need to create on-prem and then move, or, create in EXO as a user mailbox and then convert to Shared. Either way, same result.
Ivan54 wrote:It gets easier to understand once you've done the hybrid setup ;) Exchange 2013 CU15 hybrid in my case:
Once you've done the hybrid setup, you simply get a new UI option in the exchange admin center (onPrem) under recipients > mailboxes > New Office 365 Mailbox.
Thats it.
Thanks a lot! (edit) apparently I was not aware of that option at the time I wrote the script.
Its good to see that this question isn't really that stupid :).
What i do is the following, i use create user in onprem and mailbox onprem migrate it to office365 and assign license when the customer is gonna use the hybrid server for Maintanance and administration.
When a customer is planning to go all the way to the cloud i use create user sync user assign license. With the assumption the Exchange on-prem environment will be cleaned up.