When I did the same thing with the branch subdomain https://sandbox.app.purchal.com for my app https://external-ui.netlify.app, it never gets included in the SSL certificate, so that won’t work. I tried clicking “Renew certificate” and waiting for 24 hours without any luck. It’s the same Netlify account, the same domain name, and the same DNS configuration. So I don’t understand why one would work but not the other one.
So, to summarize. I am trying to set up the branch subdomain https://sandbox.app.purchal.com for my app https://external-ui.netlify.app where my primary domain is app[dot]purchal[dot]com (I wasn’t allowed to add more than 6 URLs in my post ), but it won’t work because of the SSL certificate. The DNS CNAME is already created, but the SSL is not working. Is there anything you can do to help?