After subscribing to an app you should assign users to it. You can assign the users through the Appivo Marketplace, or use the Account page to do it. The Account page is found in the user menu on the top right. In the Account page, select the Users tab to find the list of all your users. Clicking a user in the list allows you to edit the user’s details, including the apps the user is subscribed to.
When editing a user’s details, you can also add roles to the user. Roles control what a user is allowed to do with the platform and with the apps they are subscribed to. By assigning roles you can designate which users are administrators and which are standard users, for example.