You must have a membership in your ArcGIS organization in the form of a Creator or GIS Professional user type, which are the only user types that can be assigned a Community Analyst license. To access most functionalities in Community Analyst, you will need an Administrator, Publisher, or User role to view, create, and share content. The Publisher or Administrator role is required to create new projects. In the User role, many functionalities in the app will be accessible to you only if others in your organization have shared a project(s) with you. Your administrator defines the different privileges and permissions that can be given to a User, Publisher, Administrator, or a custom role. A role defines the privileges that a member has within an organization. See the roles for your organization or contact your administrator.