Yes and i follow the wizard... but i'm missing something...
I have one working domain for emails -> domain.com
I have one external domain pointing to ucs -> externaldomain.com
I have one ucs domain -> domain.local
I then add the external domain to active directory an verified it.
But i only can create email address with email@example.com and in office365 tab i can't write the office365 email address that sould be something like firstname.lastname@example.org, the user is created in azure but with email@example.com and should be firstname.lastname@example.org
In office365 i have 3 domains