I am trying to do the same thing, I was using localhost to develop some pages in UNA, and then I needed to access the Store for apps. I added the key and secret, set up my server with my domain name and SLL certificates and key, and that is all working. So, I am opening up the Store using the correct site url, still didn't work. Then I noticed the Deployment launch button in my UNA project, and tried to set that up, it asks for a server provider, which is myself, which I added my server's name. And thus, that will not deploy my project, So, I am needing some help with the Deployment. It stops there.