Overview:

This metric represents the Total Tracked Impressions for the selected global filter values. It is computed from the Tracked Impression values from the data sources listed below. Note that if the Tracked Impression value from a given data source is unavailable or set to zero, it will not be accounted for in the calculations.

Note that if the Total Tracked Impressions are displayed in a multi-dimensional table with the marketing dimensions selected (i.e., Channel, Platform, etc.) The table will display “Multiple Adapters" as the metric source. The metric's value will be shown and extracted from the relevant platform at the appropriate level in the hierarchy. 

Data Sources:

Google Ads, Microsoft Ads, Facebook Ads, LinkedIn Ads, Google Business Profile

Formula:

Sum of Tracked Impressions from data sources listed above.