The documentation portal is undergoing maintenance. During this period, you can't create any new user credentials. If you do, you'll need to recreate the user credential after the maintenance period ends.
After you log in to the Portal Configuration tool, you can import a preconfigured portal. A preconfigured portal contains multiple pages that are preconfigured for you to get started immediately.
After you import a portal, you can start the portal and access it in a browser.