Provision Exchange Online Mailbox (Enable-RemoteMailbox)
In an hybrid exchange Scenario when you only assign a license for Exchange Online to a synchronized user to Provision his mailbox the corresponding onPRem AD attribues are not set.
So These mailboxes cannot be managed from the onPrem Exchange Admin console.
So it might be a good idea to have also "Exchange Online Provisioning" wihtin the AD connector and not only onPRem Exchanges.
Connector should call the "Enable-RemoteMailbox" cmdlet which sets the appropriate Attribute onPrem and after synch and assign license users can use their mailbox.
Btw: Please rename the "Exchange 2010" provisioning option to "Exchange 2010-2016", in every presentation people are asking if newer versions are also supported.
Thanks for your feedback! — David Steadman | MIM Lead & PM Identity governance and administration engineering team