When designing an experiment to test Performance Max campaigns, which is a best practice to follow?

• Making sure the Performance Max budget is limited to 10% of other campaigns’ budgets.
• Setting up Performance Max with a comparable CPA or ROAS target to other campaigns
• Establishing a new CPA or ROAS goal for Performance Max campaigns
• Running the Performance Max experiment for one to two weeks before assessing the results

The correct answer is:

• Setting up Performance Max with a comparable CPA or ROAS target to other campaigns.