A column you create in Search Ads 360 that applies spreadsheet-like functions to data from existing Search Ads 360 columns.
For example, you can create custom metrics (instead of cost per action, which Search Ads 360 provides, you can create actions per cost) or adjust revenue for specific conversions to reflect additional costs.
You can add formula columns to Search Ads 360 reports, create bid strategies that optimize to the formula, or use them in other formula columns. Learn more about creating formula columns.