Once you login with your first Admin account on your portal, you will be directed to the admin section. You should see the following screen:

In this section, you can setup the structure and options of the application. You can also manage all users and administrators here.

For your convenience, links are also placed to easily login to your billing console automatically. However, these links are only visible to the billing account holder. There can be only one billing account holder on the portal and this account can not be deleted. It is the first account created during setup and is linked to the billing account on the billing console.