Google Ads PMax Search Terms Insights Gains Source Column
Briefly

Google has added a new source column to the Google Ads search terms insights report for Performance Max, allowing insights into search themes, URLs, and creative assets.
The new source column provides clarity on why Google triggered ads for specific search categories, enhancing campaign performance understanding.
You can check if this new column is available in your account by navigating through Campaigns > Insights and reports > Insights > Search terms insights section > Search category.
Users like Natasha Kaurra have highlighted the importance of the source column for clicks and conversions in understanding Performance Max's effectiveness.
Read at Search Engine Roundtable
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