What does a UI Policy Action do?

A UI Policy Action is a configuration element within ServiceNow that specifically controls the properties and behavior of fields on a form. By applying a UI Policy Action, developers can dynamically set or modify field attributes such as making a field mandatory, read-only, or visible based on certain conditions being met. This allows for real-time form interactions and enhances user experience without requiring server-side scripting.

For instance, if a specific condition is encountered, a UI Policy Action can ensure that a certain field is required for user input, or conversely, that it is disabled to prevent editing. This makes it an essential tool for enforcing data integrity and guiding users through the form completion process effectively.

In contrast, while other options address various aspects of application development, they do not pertain to the specific function of UI Policy Actions. Defining an application, creating a new table, or deleting records relate to different processes within ServiceNow and are not tied to the management of field attributes on user interfaces.