Ad unit hierarchy

Learn how to create and define your ad space

Ad units are organized into a hierarchy. There's a default "Top level" where new ad units can be created. However, you can navigate to an ad unit and create an ad unit at the same level or below the current level.

Child ad units inherit attributes from their parents or from default network settings—these attributes, however, can be overridden in the child.

The parent ad unit at the top of an ad unit details page displays where an ad unit exists in the hierarchy. The parent ad unit may be defined as "Top level", which means the ad unit is already at the highest level. Ad units at the top level inherit network setting for inventory.

 

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