meta-audiences

Use when creating or managing Meta custom audiences, lookalike audiences, or pixel-based retargeting segments. Also use when uploading customer lists, analyzing audience overlap, or checking audience population status.

Model	Source
sonnet	pack: ads

Full Reference

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Meta Audiences

Meta Custom Audiences for targeting users based on first-party data — customer lists, website pixel events, app activity, or engagement on Meta platforms. Lookalikes extend reach by finding statistically similar users.

Quick Reference

Type	Min Size for Ads	Populates In
Customer List	100 matched users	24–48 hours
Website (Pixel)	1,000 matched users	Real-time
Engagement	100 matched users	Real-time
Lookalike	N/A (derived)	6–24 hours

Reference Index

I want to…	File
Upload customer email/phone lists, check match rates, manage audience sizing	reference/customer-list-audiences.md
Create pixel-based retargeting segments, engagement audiences	reference/pixel-and-engagement-audiences.md
Build lookalike audiences from customer lists or pixel events	reference/lookalike-audiences.md

Usage: Read the reference file matching your current task from the index above. Each file is self-contained with code examples and inline gotchas.