Generates keyword ideas from seed keywords with average monthly searches and competition (Google Ads Keyword Planner). Set the market explicitly: language_id = Google language constant id (e.g. 1000 English, 1001 German, 1002 French, 1003 Spanish, 1037 Turkish); geo_id = Google geo target constant id, several allowed comma-separated (find ids with geo_target_search). Empty language_id = all languages, empty geo_id = all locations worldwide — volumes are then global, so always pass the advertiser's market when you know it. The reply echoes the targeting that was used. For month-by-month history of keywords you already have, use keyword_historical_metrics.