Which functionality could be restricted by a Catalog UI Policy?

A Catalog UI Policy in ServiceNow is utilized to manage the behavior and appearance of catalog items dynamically based on specific conditions. One of its primary functionalities is to conditionally require field inputs. This means that a Catalog UI Policy can enforce certain fields to be mandatory based on other variable inputs or user selections. For instance, if a user selects a particular option in one field, the UI Policy can make another field mandatory to ensure complete information is captured.

While setting a variable to read-only, limiting access by user criteria, and defining default values are functions related to catalog items, they do not align with the core function of what constitutes a Catalog UI Policy. The requirement of inputs based on conditions is a direct application of UI Policy rules, emphasizing its role in enhancing user experience through dynamic form interactions.

In summary, the ability to conditionally require field inputs through a Catalog UI Policy effectively improves the process of collecting information while ensuring that necessary data is not overlooked.