What data is shared from Search Ads 360 (SA360) to Google Ads to enable Google Ads auction-time bidding in SA360?

Conversions are the correct data type shared from Search Ads 360 to Google Ads because auction-time bidding requires Google Ads' machine learning algorithms to have immediate, signal-level access to the conversion data that defines a campaign's success. When auction-time bidding is enabled, Search Ads 360 shares Floodlight conversion data with the Google Ads engine, allowing it to analyze millions of unique signals—such as device, location, and time of day—at the exact moment of an auction. This integration bridges the gap between SA360's portfolio-level strategic management and Google Ads' ability to set the most precise bid for every individual search query in real time, ensuring that the bidding engine optimizes toward the actual conversion goals set by the advertiser.