In Episode 33 of Tacos Tuesday, Hamish Conway and Sebastian Hargreaves dive into the crucial topic of negative matching for Amazon ads. They break down common mistakes sellers make, such as blindly negating high ACOS keywords and eliminating low-volume terms that can actually drive profitability. The discussion covers key criteria for effective negative matching, including relevancy, click-to-sale ratios, and cost-per-acquisition thresholds. They also share insights on how often to negative match based on campaign age and spend levels. If you want to maximise ad efficiency and reduce wasted spend, this episode is packed with actionable strategies to refine your approach.