Beatriz is setting up a Google Search campaign using a conversion-based Smart bidding strategy. To meet her value-based objectives, she's decided to go with Target ROAS. What best practice can she follow to set her initial ROAS target?

The best starting point is the campaign’s historical conversion value / cost , because Target ROAS should be based on the return the campaign has already been producing. Google Ads recommends using historical conversion value per cost data from the relevant campaign or ad groups as the guide for the initial target. As a general rule, Google Ads points to the last four weeks of data when setting that starting benchmark. A target set far above historical performance can reduce traffic volume, so the initial Target ROAS should stay grounded in actual account data. Google Help+1