10/20/2026
Quick tip. Do not panic when your ACOS jumps up.
Most sellers see a high ACOS and immediately shut off their ads. That is a mistake. High ACOS usually means your backend is leaking money. Not that Amazon is just charging you more.
If you are letting automated rules run wild or you are bidding on junk keywords, you are paying too much for clicks that do not convert.
Here is the fix. Pull your search term report and negative match the garbage. Move your top converting keywords into a tight exact match campaign. Set your own bid caps based on your actual margins.
Amazon wants you to spend money. They do not care about your profit. You have to protect it yourself.
What is the worst ACOS you have ever had to dig yourself out of?