On 10 August 2026 a meaningful share of Amazon Sponsored Products spend started leaving Amazon, and almost nobody had to approve it. Eligible campaigns were enrolled into creator placements automatically, at their existing bids, from their existing budgets, reporting into the same totals. Six weeks later there is finally enough data to decide what to do about it — and roughly eight weeks left in which changing anything is still sensible.
From 10 August 2026 Amazon began serving Sponsored Products ads inside content published by creators in its Influencer Program — product reviews, buying guides and editorial, off Amazon. Eligible campaigns set to “Increase reach” were enrolled with no action required, at unchanged bids and budgets. The control sits per campaign under “Settings for ads served off Amazon”, where “Limit off-Amazon spend” is the alternative. There is no account-level off switch, so this is a campaign-by-campaign decision and it should be made before Q4 peak, not during it.
What changed on 10 August, precisely
Amazon extended Sponsored Products delivery into content produced by creators in its Influencer Program. Those creators have verified engagement and Amazon sales history, and they self-select which advertised products to feature, so your ad can appear inside a creator's review, editorial piece or buying guide on a surface that is not Amazon.
The mechanics are what make this easy to miss:
- Enrolment was automatic. Every eligible campaign already running under the default “Increase reach” setting was in from day one. No email approval, no migration tool, no new campaign type.
- Bids and budgets carried over unchanged. The new placement competes for the same daily budget at the same cost-per-click you set for on-Amazon delivery.
- It reports into the same campaign. Spend, clicks and attributed sales roll into the totals you already look at, which is why a campaign can drift without anything looking obviously wrong.
- Campaigns already set to “Limit off-Amazon spend” were unaffected, as were advertisers in markets where creator inventory is not yet available. The eligible country list does not include every market — the UK, for instance, is reported as outside it.
None of this is hidden. It is simply invisible at the level most advertisers actually monitor, which is campaign ACOS and total sales.
The 20-minute diagnostic
Before deciding anything, find out how much delivery actually moved. Every argument below depends on two numbers you do not currently have in front of you.
- Pull the Sponsored Products placement report for a window that spans the change — say 1 July to 9 August, then 10 August to date. Two comparable periods, same campaigns.
- Split spend by placement classification and isolate the off-Amazon line. Record impressions, clicks, spend and attributed sales for it.
- Calculate two figures per campaign: the share of spend going off Amazon, and the ACOS of that spend on its own. Not blended — on its own.
- Compare on-Amazon ACOS before and after 10 August. If on-Amazon delivery fell while total spend held flat, the new placement is displacing clicks you already knew converted, which is a different and worse problem than simply adding inefficient spend.
Campaigns that were budget-capped before August are the ones to look at first. A campaign that spent its daily budget by early afternoon in July has not gained incremental reach; it has reallocated a fixed budget toward a placement nobody chose.
Do this before you change any setting. If you switch a campaign to “Limit off-Amazon spend” first and pull the report afterwards, you have destroyed the baseline that tells you whether the switch was right, and you will not get it back.
How much off-Amazon spend can you actually absorb?
This is the question the placement report cannot answer on its own, and it is straightforward arithmetic once you frame it properly. Blended ACOS is total spend divided by total attributed sales. If off-Amazon delivery converts worse than on-Amazon delivery — which is the case worth planning for — there is a maximum share of spend it can take before your blended number breaks your target.
The formula, for any three numbers you care to use:
smax = (1/ACOStarget − 1/ACOSon) ÷ (1/ACOSoff − 1/ACOSon), where ACOSon is your on-Amazon ACOS, ACOSoff is the ACOS of off-Amazon delivery alone, and ACOStarget is the blended ACOS you are willing to accept.
Worked through for a common shape — a campaign running at 25% ACOS on Amazon against a 30% blended target — it produces a table that is genuinely useful to keep next to the placement report:
| If off-Amazon ACOS is… | Most off-Amazon spend share you can absorb | Reading |
|---|---|---|
| 30% | Any share | At target on its own; it cannot break the blended number |
| 40% | 44.4% | Comfortable. Worth leaving on and monitoring monthly |
| 50% | 33.3% | Workable, but cap the campaign budget rather than trusting it |
| 60% | 28.6% | Tight. Review fortnightly or limit |
| 100% | 22.2% | You are buying reach, not sales. Only defensible for a launch |
| No attributed sales at all | 16.7% | The floor. Above a sixth of spend converting nothing, a 25% base cannot hold a 30% target |
That last row is the number to remember. Even if off-Amazon delivery returned nothing, a campaign at 25% on-Amazon ACOS could absorb roughly one sixth of its spend going there before a 30% blended target fails. That is a useful amount of headroom, and it is also a hard ceiling: if your placement report shows off-Amazon taking a quarter of spend at an ACOS well above your on-Amazon figure, the arithmetic has already decided for you.
The same arithmetic run from a thinner base is far less forgiving. A campaign at 35% on-Amazon ACOS against a 40% target can absorb only about 18% of spend at zero return — and most of the products sitting at a 35% ACOS are the ones whose margins cannot take a surprise.
Increase reach or limit? A decision by campaign type
The setting is per campaign, which means the right answer is per campaign too. Blanket-limiting everything throws away a placement that genuinely suits some products.
| Campaign or product situation | Setting | Reasoning |
|---|---|---|
| Considered purchases people research first — tools, appliances, skincare, supplements, hobby gear | Increase reach | Reviews and buying guides are literally where this audience already researches. This is the case the placement was built for |
| New launches with no review base of their own | Increase reach, hard budget cap | Creator content does the credibility work your own review count cannot yet do |
| Thin-margin commodity products near break-even ACOS | Limit off-Amazon spend | No headroom in the arithmetic above to absorb an unknown-efficiency placement |
| Brand-defence campaigns on your own brand terms | Limit off-Amazon spend | You are paying to hold a shelf you already own, not to find new demand. Off-Amazon reach is beside the point |
| Campaigns that hit their daily budget before midday | Limit off-Amazon spend | Every off-Amazon click displaces an on-Amazon click you already know converts |
| Hero ASINs you cannot afford to destabilise in Q4 | Decide now, then freeze | Either setting is defensible. Changing it during peak is not |
You can also exclude specific creators rather than switching the whole setting, which is the right tool when the problem is brand adjacency rather than efficiency.
What “Limit off-Amazon spend” actually does
It is a limit, not a block, and Amazon describes it as controlling spend by restricting delivery off Amazon, which may reduce impressions and sales opportunities. Three consequences follow that advertisers routinely get wrong:
- It is not an account-level switch. Setting it on your top ten campaigns leaves the long tail enrolled. If you have several hundred campaigns, this is a bulk-edit job, not a settings change.
- New campaigns start at the default. Anything you build for Q4 will be created under “Increase reach” unless you change it deliberately, so the decision has to become part of your campaign build checklist rather than a one-off clean-up.
- Restricting delivery can reduce total volume. On a campaign that was not budget-capped, limiting off-Amazon delivery may simply mean spending less overall, which looks like an efficiency win in ACOS terms and a loss in absolute sales. Judge it on sales at target ACOS, not on ACOS alone.
The attribution caveat that flatters these numbers
If a shopper finds your product through creator content, clicks the Sponsored Products placement and buys on Amazon later, you see a paid click and an attributed sale. That is correct accounting for the click, and it is not evidence that the placement created the purchase. Some share of those shoppers would have found the product anyway.
This is the same measurement problem that runs through every retail media network, and it is why platform-reported ROAS and incremental ROAS keep diverging across the category. The only clean read is a holdout: limit off-Amazon spend on a matched set of campaigns for a full two to three weeks, hold everything else constant, and compare total sales rather than campaign ACOS. If total sales hold while spend falls, the placement was buying activity you already had. If total sales fall, it was not.
That test takes three weeks and cannot be run through Black Friday. Which brings us to the timing.
Why this is a September decision, not a November one
Black Friday falls on 27 November 2026 and Cyber Monday on 30 November. Working backwards:
| Window | What to do |
|---|---|
| Now – mid-October | Pull the placement report, calculate off-Amazon share and standalone ACOS per campaign, apply the decision table above |
| Mid-October – early November | Run a holdout on the campaigns you are unsure about. Three clean weeks before demand distorts |
| Early November | Lock settings for hero ASINs. Add the off-Amazon setting to your Q4 campaign build checklist |
| Peak trading | Change nothing structural. Manage budgets and bids only |
| Early January | Re-read the placement report against Q4 data, which is the largest sample you will get all year |
The general principle holds beyond this specific change: delivery-mix changes made during peak are unreadable, because you cannot separate the effect of the change from the effect of the season. It is the same reasoning behind holding other structural decisions until after the Q4 planning window closes.
Frequently asked questions
What changed with Amazon Sponsored Products on 10 August 2026?
Amazon began serving Sponsored Products ads inside content published by creators in its Influencer Program — product reviews, editorial and buying guides — on surfaces off Amazon. Eligible campaigns already set to the default “Increase reach” option were enrolled automatically, at their existing bids and budgets, with no advertiser action required.
How do I stop my Sponsored Products ads running off Amazon?
At campaign level, under “Settings for ads served off Amazon”, choose “Limit off-Amazon spend” instead of the default “Increase reach”. There is no account-level off switch, so it has to be applied campaign by campaign, and any new campaign you create will start on the default again unless you change it.
Does “Limit off-Amazon spend” block off-Amazon delivery completely?
No. Amazon describes it as controlling spend by limiting delivery off Amazon, and notes it may reduce impressions and sales opportunities. It is a restriction rather than a block, and on a campaign that was not budget-capped it can reduce total spend and total sales as well as off-Amazon spend.
How much off-Amazon spend can a campaign absorb before it breaks my ACOS target?
It depends on three numbers: your on-Amazon ACOS, the ACOS of off-Amazon delivery on its own, and your blended target. For a campaign running at 25% on-Amazon ACOS against a 30% blended target, off-Amazon spend can take up to about 44% of budget if it converts at 40% ACOS, about 33% if it converts at 50%, and roughly 17% even if it returns no attributed sales at all.
How do I see how much of my spend is going to creator placements?
Pull the Sponsored Products placement report and split spend by placement classification, comparing a period before 10 August 2026 with one after. Record impressions, clicks, spend and attributed sales for the off-Amazon line, then calculate its share of total spend and its standalone ACOS. Do this before changing any setting, because switching first destroys the baseline.
Can I keep the placement but exclude particular creators?
Yes. Advertisers can exclude specific creators rather than restricting off-Amazon delivery entirely. That is the right control when the concern is brand adjacency — which content your product appears beside — rather than efficiency, since it leaves the placement working while removing the specific context you object to.
Should I change this setting during Black Friday and Cyber Monday?
No. Black Friday falls on 27 November 2026 and Cyber Monday on 30 November. A delivery-mix change made during peak cannot be separated from the effect of seasonal demand, so the data it produces is unusable. Decide by early November, lock the setting on hero ASINs, and revisit in January when Q4 has given you the largest sample of the year.
The takeaway
A placement you did not choose has been spending your budget at your bids for six weeks, and it reports into the same totals you already look at, which is exactly why it is easy to leave alone. It is not automatically bad: for considered purchases and new launches, creator reviews and buying guides are a reasonable place for a Sponsored Products ad to be. But it is a per-campaign decision with real arithmetic behind it, and the arithmetic is unforgiving on thin margins. Pull the placement report, work out what share of spend moved and what it returned on its own, and decide deliberately in the next three weeks. Whatever you choose, choose it before peak, because a delivery-mix change made in late November tells you nothing you can use.
Sources & further reading
- PPC Land, “Amazon Sponsored Products campaigns gain creator placements on August 10”
- Ad Badger, “Your Sponsored Products Ads Are Now Running Inside Creator Reviews”
- Velocity Sellers, “Sponsored Products Moves Into Creator Content on August 10”
- Be Bold Digital, “Amazon Expands Sponsored Ads to Creators by Default”
- Affiverse, “Amazon Extends Sponsored Products Into Creator Content”
- Break-even figures in this article are arithmetic applied to the stated example inputs, not Amazon-published performance data. Substitute your own placement-report numbers before acting on them.