AdCrunch Custom audiences API
The Meta Custom Audiences of an ad account: the groups of people that an ad set can include or exclude. A Custom Audience is configuration of the ad account, not an entity: it has no Insight, and AdCrunch stores none, so this tag has no stored read. Its live read asks Meta for the audiences of one advertiser. On Meta, you can also create a website audience from the events of a Pixel, or a lookalike of another audience. A change is asynchronous. The operation answers `202` and starts a Mutation. You poll the Mutation for its outcome.