To ensure data consistency across the entire ServiceNow platform, developers use Data Policies .
1. The Scope of Data Policies:
Data Policies enforce requirements on data payload at the database engine level (server-side). Because they operate at this deep layer, they act as a universal gatekeeper. It does not matter if a user types the data into a browser UI Form, if the data is bulk-loaded via an Import Set, or if it is pushed in via a REST/SOAP Web Service API—the Data Policy will evaluate the data. If the data fails the policy (for example, a mandatory field is missing), the database will reject the insert or update.
2. Comparison to UI Policies:
This is the critical distinction developers must know. UI Policies only run on the client-side (in the browser). If you make a field mandatory with a UI policy, a user on the form cannot submit it. However, an external API could easily bypass that UI Policy and insert a blank record. A Data Policy prevents that bypass.
3. Why the other options are incorrect:
B, C, and D: " Write Policies, " " Data Integrity Policies, " and " Data Submission Policies " are not standard ServiceNow platform features or terminology.
[Reference:, ServiceNow Data Management documentation clearly contrasts Data Policies with UI Policies, establishing that Data Policies execute on the server and apply to all data entering the system regardless of the source.]
