If you’re spending more on ad campaigns than you’re earning, then you should try to reduce your Amazon ACOS or increase your earnings. Looking at successful or failing ad campaigns can help pinpoint where your funds should be going, and where there are opportunities to reduce and optimize spending. Additionally, make sure you’re considering the correct keywords. These metrics can help your campaigns reach a broader audience. For advertising with Sponsored Brands, we recommend including at least 25 keywords. Those keywords also include phrases, broad keywords, and products or brand names. A combination of a variety of types of keywords will help reach your optimal audience.