No certificates when trying to add SSL Bindings for Azure Web App

Question

I am trying to create an SSL Binding for an Azure Web App that is a host for an API App.

After navigating to \"Custom domains and SSL\" for the web app in question,

Answer 1

The problem was that I was trying to register a subdomain of subdomain.

Instead of using admin.api.foo.com I started using adminapi.foo.com. It started showing up in the drop down.