https://support.google.com/google-ads/answer/7459237
Navigate Smart campaigns - Computer - Google Ads Help
Note: You can only create Smart Campaigns in Smart Mode. New and existing advertisers who aren't in Smart Mode are eligible for a variety of other campaigns.
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https://support.google.com/google-ads/answer/6167140?hl=en
Finding success with Smart Bidding - Google Ads Help
Best practices for automating and optimizing your bids.
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