They’re caused by using the wrong match type at the wrong time.
Here’s how I think about match types strategically:
1 : Auto campaigns
Great for exploration. Let Amazon show you what shoppers are actually searching for. This is where insights are born.
2 : Broad match
Used when you want reach and data. Ideal for expansion, brand exposure, and discovering variations you didn’t plan for.
3 : Phrase match
More control, less noise. Best when you know the intent but still want flexibility around how shoppers search.
4 : Exact match
This is where efficiency lives. High intent, high control, and usually the best place to scale what’s already proven.
The real win isn’t choosing one match type.
It’s using each one at the right stage of the funnel.
Discovery → Validation → Efficiency.
That’s how strong Amazon PPC systems are built.
If your campaigns feel messy or unpredictable, start by checking whether your match types actually match your goal.