When creating a new custom audience, you can use the
exclude_from_campaigns field to exclude that audience by default from all campaigns.
The API now provides a
reject_reason field for Campaigns and Items. If the Campaign or Item were rejected, the
reject_reason field provides the reason.
Network-level Custom Audiences can now be targeted (Bug Fix).
It is now possible to target Lookalike Audiences through the API.
It is now possible to create/update a Custom Audience Rule through the API. The API also allows you to configure default suppression settings for the custom audience.
The API now provides an
audience_size field for Custom Audiences (as well as Marketplace Audiences).