Reference / Glossary / Targeting and data
Custom Audience
Meta's term for an audience built from the advertiser's own data: uploaded customer lists, website visitors from the Pixel, app users, engagement with the advertiser's content on Meta. Uploaded identifiers are hashed before matching. The equivalent on Google is Customer Match; on LinkedIn, Matched Audiences.
Used in The Signal
Cite this entry:
Agency Echelon. "Custom Audience." Agency Echelon Reference, reviewed September 2026. https://agencyechelon.com/reference/glossary/custom-audience/