What type of customization can be done using the Sitefinity backend interface?

The Sitefinity backend interface offers a variety of customization options that allow users to effectively manage and tailor their website's functionalities to meet specific business needs. One key aspect of this is the ability to set up forms and manage content types. This includes creating custom content types for different types of data, such as blogs, news articles, or events, and allowing users to build forms for gathering information from visitors, which is essential for various functionality on a website.

By utilizing the backend interface, site administrators can define fields, set display settings, and manage how users interact with these forms, streamlining the data collection process. Additionally, managing content types within the backend enables a more structured approach to content management, leading to a more organized and maintainable website.

While creating custom MVC widgets, configuring user access roles, and altering CSS and layouts are also important functionalities within Sitefinity, they represent more specific aspects of development and design. The option that encompasses a broader and more foundational aspect of site customization via the backend is setting up forms and managing content types, which is essential for building a dynamic and interactive website.