What is ACoS on Amazon?
Common seller question · Read on agentxray.ai: the ACoS glossary page
Answer · AgentXray team
ACoS, or Advertising Cost of Sales, is a metric that measures the efficiency of advertising campaigns on Amazon. It is calculated by dividing ad spend by ad-attributed revenue, expressed as a percentage. For example, a 25% ACoS means that €0.25 of ad spend generates €1 in attributed sales. This metric helps sellers evaluate their ad performance and make necessary adjustments to their campaigns. A lower ACoS typically indicates better targeting and optimization, while a higher ACoS may suggest the need for improved strategies. Regular monitoring of ACoS is important, especially during peak shopping seasons when advertising costs can vary significantly.
For more information, you can check the ACoS definition page.