Is it possible to customize invitation email? I'm a newbie with OS X Server and specially with Profile Manager.

I have already managed to make enrollment work, but I'm wondering if it is possible to change the template of the invitation email since it is pretty awful and leaves no space for branding or anything else.
Go to your HD > Applications > Server.app

Right Click > Show Package Contents

Go to Contents > ServerRoot > usr > share > devicemgr > backend > app > views > emailer

Open the email_profile-multipart.erb file in your IDE of choice, and make your style edits to the HTML email.