根據現有廣告活動建立最高成效廣告活動時，取決於廣告活動類型和可用工具。詳情請參閱相容性表。
智慧購物廣告活動和區域廣告活動
最高成效廣告活動是在自動升級過程中建立，因此您不需要採取任何行動。
車輛資訊廣告活動
最高成效廣告活動是在自動升級過程中建立，因此您不需要採取任何行動。
手動建立廣告活動
如果您想建立最高成效廣告活動，但不想使用工具或其他升級方法，可以透過 Google Ads API 手動建立廣告活動。
請按照下列各用途的步驟操作：
根據現有廣告活動建立廣告活動
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上次更新時間：2025-08-27 (世界標準時間)。
[null,null,["上次更新時間：2025-08-27 (世界標準時間)。"],[[["\u003cp\u003ePerformance Max campaigns are automatically created from existing Smart Shopping, local, and vehicle listing campaigns.\u003c/p\u003e\n"],["\u003cp\u003eYou can manually create Performance Max campaigns for online sales, lead generation, online sales with product feeds, and travel goals using the Google Ads API.\u003c/p\u003e\n"],["\u003cp\u003eManual creation is recommended only when campaign upgrades are unavailable or if you want to run Performance Max alongside existing campaigns.\u003c/p\u003e\n"],["\u003cp\u003eAssisted or automatic upgrades offer advantages like A/B testing and campaign continuity.\u003c/p\u003e\n"],["\u003cp\u003eCampaign compatibility for upgrades to Performance Max can be found in the provided table.\u003c/p\u003e\n"]]],[],null,["# Create a campaign based on an existing campaign\n\nCreating a Performance Max campaign based on an existing campaign depends on\nthe campaign type and the available tools. See the\n[compatibility table](/google-ads/api/performance-max/upgrade-eligibility#campaign_types_eligible_for_upgrade)\nfor more information.\n\nSmart Shopping campaigns \\& local campaigns\n-------------------------------------------\n\nPerformance Max campaigns were created as part of the automatic upgrade process,\nso no action is required.\n\nVehicle listing campaigns\n-------------------------\n\nPerformance Max campaigns were created as part of the automatic upgrade process,\nso no action is required.\n\nCreate campaigns manually\n-------------------------\n\nIn the case, where you want to create Performance Max campaigns without using\ntools or other upgrade methods, you can manually create the campaign yourself\nusing the Google Ads API.\n\nFollow the steps outlined for each of the following use cases:\n\n- [Online sales or lead generation](/google-ads/api/performance-max/getting-started?type=standard#campaign_and_campaign_budget)\n- [Online sales with a product feed](/google-ads/api/performance-max/getting-started?type=retail#campaign_and_campaign_budget_2)\n- [Travel Goals](/google-ads/api/performance-max/getting-started?type=travel-goals#campaign_and_campaign_budget)\n\n| **Note:** We recommend using this route only if there is no option to upgrade a campaign type or if you intended to keep both the Performance Max campaign and the existing campaign active together. Using assisted or automatic upgrade routes have other benefits such as the ability to A/B test performance or retain campaign continuity. See [Check an existing campaign can be upgraded to Performance Max](/google-ads/api/performance-max/upgrade-eligibility) for more information."]]