ProvisionPoint only needs to know about your Web Applications if you plan to use it to create Site Collections. When we create a Site Collection in SharePoint we must tell it where to be created - a Web Application and Managed Path location.
Adding your Web Application URL's
To add a web application URL, navigate to the 'Web Applications' page, under Resources:
Here you'll see any URL's already added, and you'll be able to add your own. You can add as many as you'd like. Enter the fully qualified domain name of the web application here, and click Add:
You'll now be able to reference these Web Application URL's in the 'Managed Paths' screen - see Managed Paths.