An ad ops specialist is setting up a campaign and needs to make sure a generic brand ad serves as a backup if no targeted ads are eligible for a specific impression. How is this backup plan performed in the system?

A default ad serves when no other assigned ads are available for a placement. In Campaign Manager 360 , default ads do not use targeting and function as the fallback delivery layer. This helps prevent an empty impression when targeted ads are not eligible. For display placements, the default ad must match the placement’s creative requirements so the tag can return a valid creative.