List Audiences

Lists the account's audiences (remarketing / rule-based / customer-match / lookalike): id, name, type, membership status, membership duration (days), Display/Search network size.

definition=true also returns WHAT DEFINES each list, which the name alone does not tell you and which you need before attaching or — far more dangerous — EXCLUDING one: for a RULE_BASED list the URL/event rule items with their operators and lookback window; for a LOGICAL/COMBINED list the constituent lists resolved to NAMES with their ANY/ALL/NONE operator; for a SIMILAR list the seed list; for CRM_BASED the upload key and data source. Excluding a list that turns out to be "anyone who reached any thank-you page" silently suppresses real prospects, so check the rule rather than trusting the name. Google does NOT store a readable rule for every list — older ones come back with definition_available=false, and then the Google Ads interface (Tools, Audience manager) is the only place to read it. Every audience is retained: limit controls only this response page and page_token continues from cache without a new query or credit. Read-only.