Google Ads API の入札単価シミュレーションでは、入札単価をさまざまな方法で変更した場合に、費用、インプレッション数、クリック数にどのような影響があるかを予測できます。これは、Google 広告の UI の入札単価シミュレータに類似しており、過去のデータに基づいています。将来の予測については、キーワード プランニングの同様のコンセプトをご覧ください。
[[["わかりやすい","easyToUnderstand","thumb-up"],["問題の解決に役立った","solvedMyProblem","thumb-up"],["その他","otherUp","thumb-up"]],[["必要な情報がない","missingTheInformationINeed","thumb-down"],["複雑すぎる / 手順が多すぎる","tooComplicatedTooManySteps","thumb-down"],["最新ではない","outOfDate","thumb-down"],["翻訳に関する問題","translationIssue","thumb-down"],["サンプル / コードに問題がある","samplesCodeIssue","thumb-down"],["その他","otherDown","thumb-down"]],["最終更新日 2025-09-05 UTC。"],[[["\u003cp\u003eBid simulations predict the impact of bid changes on your ad performance metrics like cost, impressions, and clicks.\u003c/p\u003e\n"],["\u003cp\u003eThey use historical data to project how your ads would have performed with different bids over the past seven days.\u003c/p\u003e\n"],["\u003cp\u003eBy analyzing these simulations, you can optimize your bidding strategy and improve campaign performance.\u003c/p\u003e\n"],["\u003cp\u003eBid simulations help answer "what-if" scenarios, such as how lowering or raising your bids would have affected your ads.\u003c/p\u003e\n"],["\u003cp\u003eThey enable more informed decision-making for adjusting bids and campaign-level bid modifiers for future campaigns.\u003c/p\u003e\n"]]],[],null,["# Bid simulations\n\nUse bid simulations to estimate performance for your ad groups, criteria,\nand campaigns under different bidding scenarios. You can use this information to\nadjust and optimize your bidding strategy.\n\nThe bid simulations of Google Ads API predict how changing your bid in\nvarious ways impacts cost, impressions, and clicks. This is analogous to\n[bid simulators](//support.google.com/google-ads/answer/2470105) in the\nGoogle Ads UI and is based on historical data. For forward-looking predictions,\nrefer to the similar concept of\n[keyword planning](/google-ads/api/docs/keyword-planning/overview).\n\nUse case\n--------\n\nSuppose you have an ad that's been running for a few weeks, and it is costing\na lot more than you expected or wanted to spend.\n\nYou want to test what might happen if you lower your bids a little. How many\nfewer views and clicks would your ad get? How much less would it cost?\n\nConversely, what if your ad isn't getting the number of impressions and clicks\nyou expect? How do you know where you should set your bids to fix that\nproblem?\n\nBid simulations help you research these scenarios. When you fetch a bid\nsimulation, it shows projected views, clicks, and cost during the time period\nyour ad was showing.\n\nWith bid simulations, you can examine performance statistics for the past week\nat the current level of bidding, alongside simulated performance over the same\ntime period using different bid amounts.\n\nBy analyzing how your ads might have performed differently in the past, you can\nmake more informed decisions about how to adjust your bids and campaign-level\nbid modifiers for the future."]]