Should I cap CPCs with Smart Bidding?

Generally no - Smart Bidding needs flexibility. Use a max CPC bid limit only if you have a hard ceiling, and expect reduced conversion volume.

Go deeper

Want the full playbook? Read Taming Broad Match in Google Ads With Smarter Automation — Broad match can unlock reach or burn budget. Here’s how to rein it in with Smart Bidding, negatives, audience signals, and careful use of AI Max.