Unique Reach: Overlap Viewable Impression Reach

Unique Reach: Overlap Viewable Impression Reach
Unique Reach Overlap

The number of unique viewable impressions that overlap across a given pair of dimensions.

Note: On January 13, 2026, the method used to calculate the metrics of Unique Reach, including Duplicate, Exclusive, and Overlap, were updated to a faster and more accurate method. You may notice differences in the returned values, especially if you re-run any reports pulled before January 13, 2026 or manually calculate the values.