The icon highlighted in the image is theReference Icon(iinside a circle). It is used forReference fieldsin ServiceNow forms.

AReference fieldlinks to a record in another table (e.g., theCallerfield in anIncidentform references thesys_usertable).

Clicking theReference Icon (i)opens apreviewof the referenced recordwithout navigating away from the form.

This feature is helpful forquickly viewing user details, CI information, or related records.

A. Drilldown– This term is not used for form field behavior in ServiceNow; " drilldowns " are usually associated with reports.

B. Lookup– While lookups are used to search for values, they do not display previews of referenced records.

C. Quickview– This is not a defined ServiceNow field type.

D. Preview– While the icon allows previewing, the correct term isReference field, not " Preview field. "

E. Snapshot– No such field type exists in ServiceNow.

ServiceNow Reference Fields & Preview

ServiceNow CSA Training Module: " Configuring Forms and Fields – Reference Fields and Their Behavior "

How Reference Fields Work:Why Other Answers Are Incorrect:References from Certified System Administrator (CSA) Official Documentation: