App configuration
This page is for settings inside an app that is already installed, such as a server address or an account name. It is not open on the console yet.
When to open this pageYou see App config policies under Settings → Apple and want to know whether you can use it.
Settings → Apple → App config policies. The menu shows the Soon badge.

When this opens, it comes after the app is installed: you set values inside the app (server, account), then assign them to a device or a group. It does not grant a license and it does not install the app.