Reference field popup width edit is not supportedIssue Can the width in the out of box reference icon popup seen on reference fields style be editable? ResolutionIf you inspect the element as in the image you can change the width on the developer console. In the example below, it was changed from 650px to 850px. There is no supported way to adjust the width of the reference icon popup. This will require DOM manipulation which is not supported by ServiceNow.