Positive dimension specifying user's audience.
| Fields | |
|---|---|
| Union field 
 | |
| 
 | Dimension specifying users by their age. | 
| 
 | Dimension specifying users by their gender. | 
| 
 | Dimension specifying users by their household income. | 
| 
 | Dimension specifying users by their parental status. | 
| 
 | Dimension specifying users by their membership in other audience segments. |