You can check the membership of an audience to see if the audience is targeting the right users. This is particularly helpful after adding or editing an audience, after adding or editing audience rules, or after changing the property or organizational structure used by an audience rule.
Important You must compile the audience before membership of an audience is updated with changes.
The audience membership summary shows the last time the audience was compiled, and the number of members in the audience at that time.
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On the View Audience Properties page for an audience, in the Audience Member section, click View membership.