Why your Amazon PPC spend is not converting
You are getting clicks. You are paying for them. The orders are not there. Before you cut bids, work out which of these five things is actually happening — because four of them are not fixed by touching a single bid.
Start by splitting the problem in two
Every "my ads are not working" case is one of two problems, and they have opposite fixes:
- A traffic problem. You are buying the wrong clicks. The people arriving were never going to buy this product.
- A conversion problem. You are buying the right clicks and losing them on the page.
One number tells you which. Open your Business Reports and find the unit session percentage — your conversion rate — for the product in question. Across Amazon, independent 2026 panels put the average Sponsored Products conversion rate at roughly 10–11%.
1. You are paying for search terms that were never going to convert
This is the most common finding in the audits we run, and the easiest to fix. Broad and auto campaigns match you to terms you would never have chosen. A seller of stainless steel water bottles ends up paying $1.40 a click for "water bottle for dogs".
How to check: Search Term Report, last 60 days, sorted by spend descending. Look at every term with meaningful spend and zero orders.
What good looks like: in a well-maintained account, the top 20 search terms by spend should all be recognisably about your product. If you are reading terms and thinking "why am I showing there", you have found your leak.
The fix: exact-match negatives on the obvious waste, phrase-match negatives on recurring irrelevant patterns. Then stop treating it as a one-off — this needs doing every few weeks, not once.
2. Your listing does not match the intent of the search
Subtler, and more expensive. The search term is relevant, the click is real, but what the shopper sees does not answer what they asked.
Someone searching "gift set for mum" is in a different frame of mind from someone searching the product name. The first wants to see presentation, packaging, something that looks like a gift. If your main image is the product on a white background with no context, you lose them in two seconds.
How to check: take your five highest-spending converting terms and your five highest-spending non-converting terms. Search each one yourself on Amazon, as a shopper. Look at your listing in the results next to the competition. The mismatch is usually visible immediately.
3. Price and reviews are doing the deciding
Amazon shoppers compare in a grid. Your listing is not being judged on its own merits — it is being judged against the five products either side of it.
Two things dominate that comparison: price and review count. A product at $34 with 41 reviews sitting beside one at $29 with 2,800 reviews will not convert, no matter how good the copy is or how well the campaign is structured.
How to check: search your main keyword. Screenshot the first row of results. Where do you sit on price, on review count, on star rating?
The uncomfortable fix: this is not an advertising problem. It is a pricing, product or review-velocity problem. Spending more on ads to out-shout a stronger competitor is the most expensive way to lose.
4. The images are losing the sale
On mobile — which is most of your traffic — a shopper sees the main image, the title and the price. That is the whole decision for a large share of buyers. Copy and bullets matter far less than sellers want to believe.
What we consistently see fixed in audits:
- The main image is too small in frame. Amazon wants the product filling 85% of it.
- No image showing scale. Shoppers cannot tell how big it is, so they do not buy.
- No image showing it in use. Lifestyle shots carry context that a white-background shot cannot.
- Nothing answering the obvious objection. If people ask "is it dishwasher safe" in the Q&A, that belongs in an image, not in bullet four.
- No video. On a contested listing, video is usually the cheapest conversion gain available.
5. You are not winning the Buy Box, or you are out of stock
The one that costs money silently. If you lose the Buy Box, your ads can still run and you still pay for clicks, but the shopper lands on a page where the buy button belongs to someone else.
The same applies to stock. Running ads on a product that goes out of stock mid-flight burns budget on traffic that cannot convert, and it damages the sales velocity your organic rank depends on.
How to check: Buy Box percentage is in your Business Reports by ASIN. Anything below about 90% on a product you are advertising deserves investigation.
The fix: pause ads on out-of-stock ASINs automatically rather than manually. Most sellers find out days late.
The diagnosis in order
- Check conversion rate. Below 7% means it is the page, not the ads.
- Check Buy Box percentage and stock. Fix those before anything else.
- Read the search term report. Negative out what was never relevant.
- Compare your listing against the search results for your top terms, as a shopper would.
- Look at price and reviews honestly against the competitors beside you.
- Only then start adjusting bids.
Most sellers do this list backwards, starting with bids because that is the lever that is easiest to pull. It is also the one least likely to be the problem.
We do this every day, in real accounts.
Our amazon advertising management team will audit yours free and show you exactly where the opportunity is. No obligation, and you keep the findings either way.