What is "Smart Bidding" and what signals does it rely on?

• A. Manual bidding with no data.
• B. Automated bidding strategies using machine learning to optimize for conversions or conversion value; signals include historical performance, auction-time signals like device, location, time, and audience data.
• C. Bidding that ignores device and time.
• D. Bidding that only uses yesterday's data.

Answer: (B)

Smart Bidding is Google's automated bidding approach that uses machine learning to optimize for conversions or conversion value in every auction. It relies on a blend of signals from historical performance data and real-time auction context, including device, location, time of day, and audience data, along with other contextual factors like browser or operating system. These signals help the model predict the likelihood or value of a conversion and adjust bids to meet your target goals (such as CPA or ROAS). It isn’t manual bidding with no data, it doesn’t ignore device or time, and it isn’t limited to yesterday’s data.