I'm having a SaaS site developed and will be offering white label service with some memberships. During user registration I will be asking users to enter a 'username' which will be used for a subdomain ie;
If I begin creating subdomains after registration using the username they entred, what steps do I have to take to let a user white label their domain. I know they'll need to add a cname record to point a domain or subdomain to the subodmain on our server. But what other steps do I have to take on my end to make it all work?