Just go to dirsync console, edit the attributes mapping, remove the attributes that represnt the exchange mailbox, that should make Azure AD think it's a user not a mailbox and mailbox should be created by assignling license.
↧
Just go to dirsync console, edit the attributes mapping, remove the attributes that represnt the exchange mailbox, that should make Azure AD think it's a user not a mailbox and mailbox should be created by assignling license.