ServiceNow Certified System Administration Practice 2026 – All-In-One Guide to Master Your System Administration Certification!

The capability to set mandatory and read-only states for a field is provided by UI Actions. UI Actions in ServiceNow are used to create buttons, links, or context menu options that perform specific functions on forms or lists. Importantly, one of the features of UI Actions is that they can change the properties of fields dynamically based on the conditions specified, enabling admins to enforce mandatory fields or make fields read-only.

By using UI Actions, an administrator can control user interactions with fields, such as requiring certain data to be filled in before submission or preventing changes to specific information under certain conditions. This makes UI Actions a powerful and flexible tool for managing user input on forms.

While Data Policies also influence field properties (for instance, they can enforce certain data rules), they are primarily focused on server-side validation and can apply to multiple forms in a more global or sweeping manner. Business Rules operate at the server level and do not directly influence the user interface in the same way. Client Scripts, meanwhile, allow for front-end manipulation of form fields, but UI Actions specifically allow for defined operations that can include setting mandatory or read-only states as part of their configurations.