COS (Cost of Sales) is a performance metric that shows what percentage of your revenue is made up of advertising costs. Our service fee is not included. You can see the total COS including the fee in Campaign statistics by clicking the question mark on the Campaign COS tile.
👉 Example: If your COS is 20%, it means that for every $100 in revenue, $20 was spent on advertising.
💡 Lower COS = more efficient ads, higher COS = higher marketing spend compared to turnover.