You can see which fields have been used from your available streams by clicking “Data” at the top of the Lytics UI and then sorting the fields in the data stream by clicking on “Times used”.
A raw piece of data may be used several times in order to present data a different way. We may use a single to field to make create different segmentable fields. For example a URL field could be used to create three different fields from the domain, path, and visit count.
See a data field that has not been used but you'd like for it to be included in your segmentable data? Please reach out to your Account Manager or firstname.lastname@example.org.