Create Whitelabel Environment With Client Sub-Domains

This project is a debug for an existing, functioning web app that's currently in Beta. Our enterprise app (marketing analytics) facilitates a whitelabel dashboard for agency customers, who have end-clients. Currently, our app allows for these agencies to create a subdomain on our site, which acts as "their" dashboard for dedicated client reports, and can be branded with their look & feel. For example, an agency customer can login to our interface at [login to view URL] (not the real site), and create a dedicated dashboard for their clients on a subdomain. Eg. "[login to view URL]" This is all functional and already exists. Where we're running into problems is in creating an automatic process (on our server side) to "connect" to a CNAME Alias that the agency customer would want to set up on their own site / subdomain. For example, the agency customer might want to use "[login to view URL]" as the CNAME alias that actually resolves to "[login to view URL]", though the end-user would still see "[login to view URL]" in the address bar of their browser. We don't need to automate what the agency customer does - they'll obviously need to set up the CNAME alias with their cpanel / webhost. But it still needs to be approved or somehow facilitated on our end (perhaps interfacing with WHM or a root process), possibly in tandem with the agency customer specifying the "inbound" domain in their UI at [login to view URL] If this sounds like something you can assist with, and have ample experience in this arena - please feel free to reach out. Since we're also looking to bring on a full-stack dev for much more consistent help, this might be a good project for us both to get our feet wet and see how it goes. Thanks