Segment Destinations | Mar. 30, 2026
Facebook custom audiences destination: Now in GA
The Facebook custom audiences destination is now in GA.
What does this destination do:
This destination sends audiences, or lists of users, to Facebook Custom Audiences, helping deliver effective Facebook Ads campaigns by defining and syncing custom audiences to power ad suppression, acquisition (using lookalikes), retargeting, and more.
What improvements come with GA:
- Automated Lifecycle Management with Mirror Sync: Keep your Facebook audiences perfectly aligned with Segment Engage. Instead of manually configuring "add" and "remove" actions, our new Mirror Sync mode evaluates membership status in real-time, ensuring your destination audience always perfectly reflects your Engage segment.
- Direct Instagram Targeting: You can now sync users directly to Instagram-connected audiences using the newly added Instagram Account IDs field.
- Zero-Mapping Setup: Launch faster with four new out-of-the-box presets. We’ve pre-configured the mappings for common audience changes and Journeys steps so you can start syncing immediately without manual setup.
- Smarter Troubleshooting: We’ve upgraded our setup validation to catch configuration errors early, providing clear, actionable feedback so you can fix issues before any data is sent.