Break Meta performance down by audience

Splits spend and results by one audience dimension: age, gender, age and gender together, country, region, platform, device or placement position. Use when: the user asks who their ads reached, or wants to see whether one demographic or geography carries the account. Do not use to decide where to move budget on its own — meta_analyze_audiences ranks the same rows and says which segments are actually above or below average. Do not read a small segment as a finding: rows with a few impressions move wildly. The table reports spend share so the weight of each row is visible. Returns one row per segment with spend, impressions, CTR, results and cost per result, in the account currency. Meta reports some rows as "unknown" when it cannot attribute them; they are shown, labelled, and never presented as a real audience.