• 2 weeks
• 3 months
• 1 week
• 3-4 weeks

The correct answer is: 3-4 weeks

Explanation: It’s best to start a Search Ads 360 bid strategy with a CPA, ERS, or ROAS target that matches historical (last 3- 4 weeks) performance because large differences in target ROI compared to historical performance may have an unexpected effect on spend and conversions or revenue.

Read more here: https://support.google.com/searchads/answer/7085426