Amazon PPC Placement Bids for Merch: top of search vs product pages

On Amazon PPC, placement bids let you pay more for one spot on the page than another. The base bid applies everywhere, and a placement adjustment raises it for top of search, rest of search or product pages. For a Merch seller, the right adjustment is the one that keeps each placement's highest bid under that placement's own break-even, and that comes from the placement report, not from a rule of thumb.

It matters on a royalty product because placements convert very differently. A campaign can look fine on average while one placement quietly loses money on every order.

This guide covers what the placements are, how to read their numbers, and how to size an adjustment with a worked example on a $19.99 shirt.

The three placements and what an adjustment does

Sponsored Products ads show in shoppers' search results and on product pages. Amazon's Sponsored Products best practices guide splits them into three placements and suggests you "adjust placement bids to balance campaign performance across top of search, rest of search, and product page placements."

• Top of search: the ads in the top row of the first page of search results.
• Rest of search: ads further down the first page and on later pages.
• Product pages: ads on other products' detail pages, such as the "products related to this item" rows.

A placement adjustment is a percentage added to your bid for that placement only. The same guide says you "can add placement bid adjustments up to 900%".

Two things follow from that, and both matter on thin margins:

Adjustments only raise bids. To pay less on one placement, you lower the base bid and raise the placements that earn it.

They apply on top of the bidding strategy. With dynamic bids up and down, Amazon can raise the adjusted bid further. The dynamic bids comparison shows how a +50% top-of-search adjustment pushes even a down-only campaign over break-even.

Why one break-even bid isn't enough

The break-even bid for a design is royalty kept per order × conversion rate. The bid strategy guide works it out for five price points.

That formula hides an assumption: one conversion rate for the whole campaign. In practice, a shopper who searched "funny nurse shirt" and saw your design first converts better than one who scrolled past it on someone else's product page.

Here is a worked example, not real account data. A $19.99 shirt keeps about $4.55 per order after returns, and the three placements convert at different rates:

The campaign's blended conversion rate might be 7%, giving one break-even of about $0.32. Bid $0.29 everywhere and top of search is underbid by almost half, while every product-page click costs more than it's worth.

The 80% column leaves a margin for clicks that cost the full bid and for orders that come back. The returns data post explains why that margin isn't optional.

How to read the placement report

Amazon describes the placement report as a way to see "the performance of your ads in the top-of-search placement compared to other placements." You can view it in the campaign's placement view in the console, or download it from the reports page for many campaigns at once.

For each placement, look at four numbers over the same date range:

• Clicks: how much data you have.
• Cost per click (CPC): what the placement really costs.
• Orders: what it earned.
• Spend: to compare with royalty, not with ad sales.

Then work out the profit per placement. Again a worked example for one campaign over 60 days, at $4.55 kept per order:

The campaign total says the design pays, barely. The rows say top of search earns all of it, and the other two placements give part of it back.

ACoS hides this too. At $19.99 a shirt, product pages show $18.00 spend on $59.97 sales, a 30% ACoS that looks acceptable until you compare it with the royalty. The break-even ACoS table puts the line for a $19.99 shirt near 23%.

How much data is enough

With 3-5 orders per placement, a conversion rate is still mostly luck. One extra order on product pages would move it from 3% to 4%.

A practical rule: judge a placement only after it has about 30 clicks, and treat anything under 3 orders as a direction, not a number. Below that, use the campaign's blended conversion rate for that placement.

On a Merch account most single-design campaigns never reach that. In that case, group campaigns of similar designs and prices, add up their placement rows, and set one adjustment for the group.

Setting adjustments that stay under break-even

The method works backwards from the placement that converts worst.

Set the base bid for the weakest placement you want to keep. In the example, product pages at 80% of break-even: $0.15. The base bid is what every placement pays without an adjustment.

Work out each other placement's target bid, again 80% of its break-even: $0.44 for top of search, $0.22 for rest of search.

Divide target by base and subtract 1. That is the adjustment. Top of search: $0.44 / $0.15 - 1 = +193%, so about +190%. Rest of search: $0.22 / $0.15 - 1 = +47%, so about +45%.

Check the worst case under your bidding strategy. With down only, the adjusted bid is the ceiling. With up and down, assume Amazon may raise it further and halve the result first.

Review after about two weeks of new data, the same rhythm Amazon's dynamic bidding guide suggests for bids.

The result looks strange next to the usual advice of "+20% to top of search". It isn't: a large adjustment on a low base bid is just a way of paying each placement what it's worth.

If you'd rather keep the base bid where it is, the free bid calculator gives the target bid for each placement's conversion rate, and the same division gives the adjustment.

Common placement mistakes on thin royalties

Raising top of search on a weak base. If the campaign has no sales yet, a +100% adjustment just doubles the price of finding out. Prove the design first, then pay for the top row. Adding an adjustment and keeping the old bid. An adjustment raises the effective bid. If the base bid was already set at break-even, any adjustment puts that placement over it. Stacking with up and down. Amazon's guides disagree on how far up and down can raise a bid by placement: the dynamic bidding guide says up to 100% for all placements, while the author's guide gives 100% for top of search and 50% elsewhere. Amazon doesn't publish how a placement adjustment and that raise combine, so plan as if they stack. Judging by ACoS against ad sales. A placement at 30% ACoS can lose money on a royalty that keeps 23% of the price. Compare spend with royalty kept, placement by placement. Changing placements on one week of data. A single order moves a small placement's conversion rate by several points. Wait for 30 clicks, or pool similar campaigns.

How PPC Optimizer Pro handles this

Placement maths gets tedious across hundreds of campaigns, which is where software helps.

PPC Optimizer Pro's Lab reads your 60-, 30- and 14-day bulk files plus your sales report. It suggests bid and placement changes (top of search, rest of search, product pages) judged on your real royalty, with returns subtracted, so the numbers are compared with what you keep rather than with ad sales. Every change shows its reason, and you download one Amazon-ready bulk file to upload.

There is a 7-day free trial. The Merch max bid calculator works out a break-even bid without an account.

FAQ

What is the top of search placement on Amazon?

It's the top row of sponsored results on the first page of a search. It usually converts better than other placements because shoppers see it first, which also makes it the most competitive spot to win.

What is a good top of search bid adjustment?

There's no standard figure. The right adjustment is the one that brings your top-of-search bid to about 80% of that placement's break-even, so it depends on your base bid and how well top of search converts for your designs. On a low base bid that can be well over 100%.

Can I lower my bid for product pages?

Not directly, because placement adjustments only raise bids. Lower the base bid to what product pages are worth, then add adjustments to the placements that convert better.

Do placement adjustments work with dynamic bids down only?

Yes. The adjustment raises the bid for that placement, and down only can then lower it for weaker clicks but never above the adjusted bid. With up and down, Amazon may raise it further, so halve your target first.

How long should I wait before changing placement adjustments?

About two weeks, or until each placement has around 30 clicks. Earlier than that, one order can change a placement's conversion rate enough to point you the wrong way.

Keep reading

• Dynamic Bids Down Only vs Fixed Bids: which one fits a Merch seller
• Amazon PPC Bid Strategy for Merch: how much to bid at each price
• Amazon PPC campaign structure