Audience blocks allow you to nest audiences within one another.
In this way, you can minimize your audiences’ complexity and re-use common patterns of logic.
Note that, if creating an audience at an auxiliary database that does not support embedded audience execution, a validation error is raised in the audience in which an embedded audience is sited.
Note also that, if an audience block’s configured audience contains one or more selection rules using placeholder attributes, the placeholder values applied at the embedded audience are used at outer audience execution.