https://support.google.com/google-ads/answer/10138845?hl=en&ref_topic=9024774
Note: Smart Campaigns can only be created in Smart Mode. New and existing advertisers not in Smart Mode are eligible for a variety of other campaigns. Use...
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https://www.searchenginejournal.com/google-pmax-negative-keyword-limit-increase/542336/
A behind-the-scenes look at the reasoning behind the initial cap and what Google learned from your feedback.
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