Client state parameter VS Data resources

[VaibhavP5059517]

Difference between client state parameter and data resources in ServiceNow UI Builder

[Tanushree Maiti · Accepted solution]

Feature	Client State Parameters	Data Resources
Primary Purpose	Serve as page-level variables to handle local UI state (such as toggles, counters, or form field values).	Function as a connector to retrieve, modify, or process data from the ServiceNow backend.
Data Source	Stored entirely in the browser memory during the session.	Interacts with the server (databases, APIs, or scripts).
Typical Use Case	Managing UI behavior like visibility, holding search inputs, or applying instant changes without reloading.	Fetching records, querying specific data (e.g., users), or performing updates on backend records.
Trigger Mechanism	Updated through user actions (e.g., button clicks) or client-side scripts.	Executes on page load, when input parameters change, or when triggered manually.
Location	Runs on the client side	Involves server/API communication
Performance	Highly responsive (no network calls)	Relatively slower due to API/network calls

Refer:

Client state parameters

All About Data Resources in UI Builder