A marketing manager wants to see how the cross-channel customer population has changed over the...

Contacts Analytics provides insights into the changes in the customer population over time, including metrics on new contacts, unsubscribes, and other population dynamics. This report allows marketers to track and analyze how their cross-channel customer base evolves, making it suitable for the marketing manager's needs. Salesforce Marketing Cloud documentation includes detailed information on generating and interpreting Contacts Analytics reports.