Full Access ServiceNow CSA Tutorials

A UI Policy is the preferred no-code approach in ServiceNow to dynamically control the mandatory, read-only, or visibility state of form fields based on specified conditions. Unlike Client Scripts, which require JavaScript coding, UI Policies provide an easy-to-configure, rule-based solution.

They allow administrators to control form behavior without scripting.

They are faster and more efficient than Client Scripts.

They run on the client-side, meaning changes occur dynamically as users interact with the form.

Define conditions (e.g., "Priority is High").

Set actions (e.g., make "Due Date" mandatory, read-only, or hidden).

Apply the UI Policy to the form automatically when the condition is met.

A. UI Action → UI Actions create buttons, links, or context menu items; they do not control form fields.

B. Client Script → While Client Scripts can achieve similar functionality, they require JavaScript coding, making them a low-code rather than a no-code solution.

C. UI Script → UI Scripts are reusable JavaScript libraries, not designed for controlling form fields.

D. UI Rule → No such feature exists in ServiceNow.

In ServiceNow, the Event Registry is a module that stores and defines all system events that can be triggered within the platform. Events in ServiceNow are used to trigger business rules, notifications, workflows, and integrations based on specific system activities.

The Event Registry [sysevent_register] table contains predefined and custom event definitions.

It allows developers and administrators to define new custom events.

Events can be triggered manually (via scripts) or automatically based on system actions.

Events are not tied to a specific timeframe but are available for use whenever triggered.

Triggering a Notification

When an incident is assigned, an event such as "incident.assigned" is triggered, which can send an email notification to the assigned user.

Initiating an Automated Workflow

When a new user is onboarded, an event like "user.onboarded" can trigger a workflow to create necessary accounts and permissions.

Logging Custom Events for Reporting

Custom events like "asset.verified" can be used to track when an asset verification process is completed.

Key Features of the Event Registry:Example Use Cases of the Event Registry:

The Event Registry is not a log of completed events but a repository of event definitions that can be triggered.

It defines both default and custom events that can be used across different system processes.

It is used for event-driven automation in ServiceNow.

Why "C. The Event Registry is a module that provides Event definitions" is the Correct Answer?

A. The Event Registry lists all Events that have successfully completed within a 24-hour period – Incorrect

This describes the Event Log [sysevent] table, not the Event Registry.

B. The Event Registry is a list of all Events that originate through an integration – Incorrect

The Event Registry is not specific to integrations; it applies to all events in the system.

D. The Event Registry is a list of all Events that have successfully completed after being Invoked by a script – Incorrect

Events triggered by scripts are logged in the Event Log, not the Event Registry.

Explanation of Incorrect Options:

ServiceNow Docs: Understanding the Event Registry

ServiceNow CSA Study Guide – Event Management

ServiceNow Product Documentation: Creating and Managing Events

References from Certified System Administrator (CSA) Documentation:

When you impersonate a user in ServiceNow for testing, you temporarily assume their permissions and role-based access. To return to your own user session, the best way is to End Impersonation.

Click on the User Menu (top right corner).

Select "End Impersonation".

You will immediately return to your original user session.

A. Turn your computer off and on again → Unnecessary and does not affect session management.

B. Clear browser cache → Cache clearing is not required; impersonation is session-based.

D. Log out and back in → While this works, it is not the best method because End Impersonation is a faster and direct solution.