Displays the channel that a Search Ads 360 remarketing list is using to build an audience. For example, if SEARCH appears in this column, then the Search Ads 360 remarketing list helps define an audience based on search traffic. The audience can then be re-engaged on other channels, such as social or display.
You specify one or more sources when you create a remarketing list in Search Ads 360. Learn more about cross-channel remarketing in Search Ads 360.
You can't change the source of a saved remarketing list. Instead, you can create a new remarketing list with different sources.