You can delete an audience that isn’t used in any placements or other reusable audiences.
If an audience is currently used, then you’ll have the option to export a Microsoft Excel worksheet showing all placements and audiences that use the audience.
In the main menu, click Audiences > All audiences.
Hold the cursor over the audience row and click Delete.
(If the audience is used in any placements or other reusable audiences; optional) Click Export XLS to download a worksheet file (in XLSX format) according to your browser’s normal procedure.
The filename includes the audience name and date.
(If the audience can be deleted) In the confirmation message, click Continue.