What’s a best practice to follow when designing an experiment to test Performance Max campaigns?

Question

Accepted Answer

Optimize Performance Max to a comparable CPA or ROAS target to other campaigns.

Answer

Create a new CPA or ROAS goal for Performance Max campaigns to achieve.

Answer

Keep Performance Max budget limited to 10% of other campaigns’ budgets.

Answer

Run the Performance Max experiment for one to two weeks before evaluating results.