If an advertiser’s goal is sales efficiency, then they can set the right bids by Adjusting bids on low performing keywords. If certain keywords have high ACOS then lowering the bids on those keywords below the average Cost-Per-Click(CPC) will reduce spend on those keywords. This will help you get a lower ACOS and better conversion rates.
This question is a part of the Amazon Sponsored Ads Foundations Certification Assessment. You can find answers to all the questions asked in this exam in our Amazon Sponsored Ads Foundations Certification Assessment Answers page.