Lowering ACoS: A Guide to Optimizing Your Amazon Advertising Campaigns Introduction: If you're an Amazon seller, you know that advertising costs can quickly add up. One of the most important metrics to keep an eye on is your ACoS, or advertising cost of sale. This metric tells you how much you're spending on advertising for every dollar of revenue generated. Keeping your ACoS low is crucial for maximizing profits and scaling your business. In this guide, we'll go o..