Learn Google Smart Bidding strategies. Need 30 conversions in 30 days minimum. See when to use each.
By The Ad Spend
Google's automated bidding strategies using machine learning to optimize for conversions or conversion value. Includes Target CPA, Target ROAS, Maximize Conversions.
Formula
Algorithm-determined bids
Benchmark range
Requires 15-30 conversions/month minimum. The '30 in 30 rule' (30 conversions in 30 days) is the threshold for switching from manual.
Why it matters
Smart Bidding needs data to work. Starting with too little leads to erratic performance. Begin with Maximize Conversions to gather data, then switch to Target CPA/ROAS once you have volume. Enhanced CPC was deprecated March 2025.
