Open almost any Sponsored Products campaign in Seller Central and you will find the placement bid adjustment fields sitting at 0%, untouched since the campaign was created. Most sellers set a keyword bid, launch the campaign, and never look at Top of Search, Product Pages, or Rest of Search again. That is a mistake, because these three placements do not perform the same way, do not cost the same, and rarely convert at the same rate — yet by default Amazon bids on all three identically.
Placement bid adjustments are one of the highest-leverage, most under-used levers in a Sponsored Products account. Here is what each placement actually is, how they typically perform, and how to set adjustments deliberately instead of leaving them at zero or guessing a round number.
A placement bid adjustment is a percentage added on top of your base keyword or product bid, applied only when your ad wins that specific placement. It does not change your bid everywhere — only in the placement you assign it to.
The Three Sponsored Products Placements
🏆 Top of Search (first page)
Ads shown above, alongside, or within the first page of organic search results. The most visible, most competitive, and usually the most expensive placement — but typically the highest converting for well-targeted keywords.
📦 Product Pages
Ads shown on competitor and related product detail pages, often in the “Sponsored products related to this item” carousel. Shoppers here already have strong purchase intent but are actively comparing you against a specific competitor.
🔍 Rest of Search
Everything else — lower on page one, and subsequent search result pages. Usually the cheapest placement and the highest volume, but with the lowest average conversion rate of the three.
How the Three Placements Actually Perform
These are not our invented labels — they are Amazon's own placement categories, reported separately in the Sponsored Products placement report and at campaign level under the “Placement” tab. Across the accounts we manage, the pattern is consistent even though the exact numbers vary by category:
- Top of Search commands the highest CPC of the three but also the highest conversion rate, because it captures shoppers actively scanning results with strong intent, above competitors and organic listings.
- Product Pages convert reasonably well because the shopper is already deep in the purchase funnel, but you are competing directly against the exact product they clicked through to see. This is where strong imagery, pricing, and review count relative to the host listing matter most.
- Rest of Search is the cheapest per click by a meaningful margin, and drives real volume, but a much larger share of that traffic is early-stage browsing rather than near-purchase intent, which pulls the conversion rate down.
Do not judge a placement on ACOS alone. Rest of Search often shows a worse ACOS than Top of Search purely because its conversion rate is lower, even when its CPC is cheaper. Look at conversion rate and total contribution to sales alongside ACOS before deciding to cut a placement.
What a Placement Bid Adjustment Actually Does
At campaign level, Sponsored Products lets you set a percentage adjustment for Top of Search and for Product Pages (Rest of Search is always your unadjusted base bid — it is the reference point the other two are adjusted against). A +50% Top of Search adjustment on a £1.00 base bid means Amazon can bid up to £1.50 when competing for that placement. Set it to 0% and Amazon bids your base £1.00 everywhere, regardless of how much better Top of Search converts for you.
This stacks with your bid strategy setting (Dynamic Bids Up/Down, Down Only, or Fixed). The placement adjustment sets the ceiling for a given placement; the bid strategy then decides, auction by auction, how close to that ceiling Amazon actually bids based on predicted conversion likelihood.
A Worked Example
Take a keyword bid at £0.80, on a campaign with a +75% Top of Search adjustment and a +20% Product Pages adjustment.
- Rest of Search: Amazon bids up to £0.80 — your unadjusted base.
- Product Pages: Amazon can bid up to £0.96 (£0.80 + 20%) to win that placement.
- Top of Search: Amazon can bid up to £1.40 (£0.80 + 75%) to win that placement.
If your bid strategy is also set to Dynamic Bids (Up and Down), Amazon can push further still on top of the £1.40 ceiling for a Top of Search auction it predicts is highly likely to convert. This compounding is the single most common cause of a campaign's CPC report showing a figure well above the base bid you originally set.
How to Set Placement Adjustments by Campaign Stage
Launch & Data Collection — Keep Adjustments Low or at 0%
In the first 1–2 weeks of a new campaign, you do not yet know how each placement will perform for this specific ASIN. Keep Top of Search and Product Pages adjustments modest (0–25%) so Amazon distributes spend across all three placements and you collect enough data at each to make a real decision.
Once You Have Placement-Level Data — Check the Placement Report
Pull the Sponsored Products placement report (or the Placement tab within the campaign) once you have at least 100–150 clicks per placement. Compare CPC, conversion rate, ACOS, and total orders for Top of Search, Product Pages, and Rest of Search side by side. This is the only reliable basis for setting adjustments — not a rule of thumb applied blanket across every campaign.
Strong Top of Search Performance — Raise That Adjustment
If Top of Search is converting well and driving a healthy share of orders relative to its spend, raise the adjustment in increments of 10–25% rather than jumping straight to 100%+. Watch the following week's spend pacing and ACOS before raising further.
Weak Rest of Search — Do Not Try to Suppress It Directly
There is no negative adjustment for Rest of Search since it is the reference placement. If Rest of Search volume is low-quality, the correction is a lower base bid (which pulls down Rest of Search) combined with higher Top of Search and Product Pages percentages to compensate — shifting the balance of spend rather than trying to zero out one placement directly.
Mature, Profitable Campaigns — Review Quarterly or After Major Listing Changes
Placement performance shifts when you change your main image, price, or review count, or when a new competitor launches a strong offer on a product page you rely on. Revisit placement adjustments after any of these changes, not just on a fixed calendar.
Do Placement Adjustments Apply to Sponsored Brands and Sponsored Display?
Sponsored Products is where placement bid adjustments work as described above. Sponsored Brands campaigns are shown in different placements entirely (top of search banner, search results, and product detail pages) and do not use the same percentage-adjustment mechanic — Amazon optimises Sponsored Brands placement automatically based on your overall bid and campaign goal. Sponsored Display placements (product pages, apps, and off-Amazon) are also handled separately, with their own targeting and bidding logic rather than a Top of Search / Product Pages / Rest of Search split.
Common Mistakes We See
- Leaving every campaign at 0% indefinitely. The default is safe on day one, but a mature campaign at 0% is leaving Top of Search conversion advantage entirely unclaimed.
- Setting a flat +50% across every campaign without checking the placement report. A category where Product Pages outperforms Top of Search will lose money under a blanket adjustment built for a different category.
- Chasing Top of Search too early. A campaign with under 100 clicks per placement does not have enough data to justify a large adjustment — you are guessing, not optimising.
- Ignoring the interaction with bid strategy. A high Top of Search adjustment combined with Dynamic Bids (Up and Down) can double-stack, spending your daily budget by mid-morning. Check both levers together.
- Never revisiting after a listing change. A new main image or a price change can shift which placement converts best. Adjustments set six months ago on old creative are often stale.
A practical starting point: launch near 0%, collect two to three weeks of placement-level data, then adjust in small increments based on what the placement report actually shows for that specific ASIN and category — not a number that worked on a different listing.
How We Manage Placement Bidding at StoreStride
Placement bid adjustments are part of our weekly optimisation cycle, reviewed alongside bids, budgets, negative keywords, and bid strategy — never set once and forgotten. When we audit a new account, a flat 0% or an untouched default across every campaign is one of the most common findings, and usually one of the fastest wins: campaigns that have been live for months with real conversion data sitting unused at the placement level almost always have room to shift spend toward the placement that is actually converting.
We pull the placement report at ASIN and campaign level, cross-reference it against organic ranking and main image performance, and set adjustments deliberately — then monitor the following week's pacing before adjusting further.
Not sure your placement bids are set up correctly?
We audit placement performance, bid strategy, and campaign structure as part of our free account audit — and show you exactly where spend is being wasted or under-claimed. Get in touch today.
Book a Free Audit Call →Common Questions About Placement Bid Adjustments
Can I set a negative placement adjustment to reduce spend on Rest of Search?
No. Rest of Search is always your unadjusted base bid — there is no negative percentage field for it. To reduce its share of spend, lower your base bid and raise the Top of Search and Product Pages adjustments instead, which shifts the balance without a direct Rest of Search control.
What is a typical Top of Search adjustment percentage?
There is no universal number — it depends entirely on how that placement converts for your specific ASIN and category. We have seen well-performing campaigns run anywhere from +20% to over +200% on Top of Search. The right figure comes from the placement report, not a rule of thumb.
Do placement adjustments apply to automatic campaigns?
Yes. Auto campaigns have the same Top of Search and Product Pages adjustment fields as manual campaigns, and the same principle applies — let the campaign collect placement-level data before adjusting.
Will a high Top of Search adjustment guarantee I win that placement?
No. It raises your bid ceiling for that placement, but you are still in a real-time auction against every other advertiser bidding on the same keyword or product target. A higher adjustment improves your odds; it does not guarantee the win.