As the platform operator, you have the ability to greatly customize the Apprenda's default behaviors and workflows. One way you might want to do so it by sending users to a default URL upon login. If a user logs into the platform without specifying a target app by way of a specific app URL, you can control where they go by default.
In the SOC, add a Platform Registry setting called "Citadel.Login.ForwardUrlOverride". The value for this setting should be the URL you want the user to reach after logging in. For example, setting the value to "/welcome" will send them to a custom app you've deployed called 'welcome'.
The default behavior without this setting is to send tenants to the Account Portal dashboard and Developers to the Developer Portal dashboard.