In ServiceNow,scripts that run in the browser (client-side)includeUI PoliciesandClient Scripts. These scripts execute on theuser's web browser, allowing real-time interaction with forms and fields without requiring a server request.
Executed in the user's browserwhen a form is loaded, saved, changed, or submitted.
Used forreal-time form validation, auto-population, and dynamic UI changes.
Written inJavaScriptand runs on the client side.
Applyrulesto make fieldsmandatory, visible, or read-onlydynamically.
Moreefficientthan Client Scripts because theydon't require scriptingin most cases.
A: Script Include Scripts- Theserun on the server, not in the browser. They are reusable functions that can be called from different scripts.
B: Business Rule Scripts- Business Rulesexecute on the server-side, triggered by database operations (Insert, Update, Delete).
C: Access Control Scripts- These areserver-side security rules(ACLs) that restrict user access to records and fields.
ServiceNow Client Scripts and UI Policies
ServiceNow CSA Training Module:"Client-Side Scripting in ServiceNow"
1. Client Scripts:2. UI Policies:Why Other Answers Are Incorrect:References from Certified System Administrator (CSA) Official Documentation: