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Data Policies in ServiceNow

A data policy is a server-side rule that allows administrators to set read only and mandatory attributes to fields within a table. Unlike UI policies, data policies are set on the server side, and are enforced regardless of how the record is being updated. For example, a UI policy that made a field read only on a form wouldn’t prevent a user from populating it using an import set. Whereas if a data policy was created to make a field read only, users wouldn’t be able to populate the field, regardless of the methods they tried to use. Data policies are great to use if you wish to enforce data integrity across your records. They’re especially useful if you have tables in which you frequently import records using import sets. In today’s demo, we’re going to create a data policy on the hardware asset table, that makes the “Serial Number” field read only, when the field is not empty, that way, it will prevent users from changing the serial number of an asset once it’s been entered.