You ran Meta ads to your listing last month. Sales went up. You called it a win.
Here's the problem: you have no idea if those ads caused the sales, and Amazon just charged you a full referral fee on traffic you paid to send them. Most sellers running external traffic are flying blind and leaving roughly 10% of that revenue on the table. Amazon Attribution fixes both — and it's free.
What is Amazon Attribution?
Amazon Attribution is Amazon's free measurement tool that tells you what happens on Amazon after someone clicks an ad you ran off Amazon. You generate a tagged link for your product detail page or Store, use that link in your Google, Meta, TikTok, YouTube, influencer or email campaign, and Amazon reports back the clicks, detail page views, add-to-carts, purchases, units sold, sales and new-to-brand orders that link produced.
Without Amazon Attribution, external traffic is a black hole. You see spend on one side and a lump of "organic" sales on the other, with nothing connecting them.
Two things you need to know before you go further:
You need Brand Registry. Amazon Attribution is open to brand-registered sellers, vendors, KDP authors and agencies in the US, Canada, UK, Germany, France, Italy and Spain.
It costs nothing. There's no platform fee. The only money you spend is the off-Amazon media you're already buying.
How Amazon Attribution Works on Amazon
The mechanics are simple, which is why "it's complicated" is a bad excuse for not doing it.
You create an advertiser in the Amazon Ads console and set up a campaign inside Amazon Attribution.
You pick the ASINs you want to track and define a publisher (Google, Meta, TikTok, email, an influencer) and a channel.
Amazon spits out a tagged URL — your normal listing URL with an attribution parameter appended.
You use that URL as the destination in your external ad. Never the clean one.
Amazon matches the click to on-Amazon behaviour and reports it back.
The attribution model matters more than most sellers realise. Amazon Attribution uses a 14-day last-touch window. If a shopper clicks your tagged link and buys within 14 days, that campaign gets the credit. If they click your Google ad on Monday and your Meta ad on Thursday and buy on Friday, Meta takes 100% of the credit. Not 50/50. All of it.
That single rule explains most of the confusion sellers have with their Attribution reports.
A related change worth knowing: from 1 January 2026, Amazon moved its on-Amazon view-attribution to a shopping-signal enhanced last-touch model, which shifts credit toward early discovery moments and affects Sponsored Brands and vCPM-billed Sponsored Display reporting. It doesn't change your Attribution tags, but it does mean your blended ROAS numbers across on- and off-Amazon reporting won't line up the way they did in 2025. Don't panic-optimise off that gap.
Why Amazon Attribution Matters for Your Profitability
This is where it stops being a reporting tool and starts being a margin tool.
Enrol in the Brand Referral Bonus and Amazon credits you an average of 10% of the net sales price on any qualifying sale driven through an Attribution-tagged link. The credit comes off your referral fees. You need Brand Registry, and the traffic has to run through Attribution tags — untagged external traffic earns you nothing.
Run the numbers on a single unit:
ASP: $40
Referral fee at 15%: $6.00
Brand Referral Bonus at ~10% of $40: $4.00 back
Effective referral fee: $2.00, or 5%
Amazon froze referral fees in both 2025 and 2026, so that math is stable enough to plan around. Push $50,000 of externally-driven sales through tagged links and you get back roughly $5,000 you were otherwise handing over.
Now plug it into the only equation that matters:
Revenue − Amazon fees − ad spend − returns − COGS = actual profit.
Most sellers skip three of those. Here's the full picture on that same unit:
ASP $40 − referral $6 − FBA fee $6.50 − COGS $10 − returns allowance 3% ($1.20) = $16.30 contribution
Add the Brand Referral Bonus: $20.30
That $20.30 is your true maximum cost per external order. If your click-to-purchase rate from Meta is 5%, your break-even external CPC is $20.30 × 0.05 = $1.01. Bid above that and you're buying revenue, not profit.
Notice what the Brand Referral Bonus did: it raised your ceiling on external CPC by about 25%. That's the difference between external traffic being a vanity channel and a scaling lever.
Common Mistakes Sellers Make with Amazon Attribution
1. Sending untagged traffic
The single most expensive mistake. Untagged clicks land in your "organic" bucket, so your organic numbers look better than they are, your external ROAS looks worse than it is, and you earn zero Brand Referral Bonus on every one of those orders. You paid for the click twice — once to the platform, once to Amazon.
2. Reusing one tag everywhere
One tag across Meta, Google and three influencers merges all that data into one useless line. You can't kill the loser or scale the winner because you can't see either. One tag per publisher per campaign. Minimum.
3. Judging a campaign before day 14
The window is 14 days. Reports lag on top of that. Sellers look at day 4, see clicks with almost no purchases, declare the campaign dead and switch it off — right before the conversions land. Review purchase and revenue data no sooner than 14 days after launch. Same discipline as PPC: optimise on a 14-day cycle, not daily.
4. Stacking Associates tags with Attribution tags
Amazon explicitly prohibits earning an affiliate commission and a Brand Referral Bonus on the same click. It breaks your tracking and it risks your bonus and your Brand Registry standing. Pick one.
5. Never enrolling in the Brand Referral Bonus at all
Plenty of sellers set up Attribution, tag their links, read the reports — and never enrol in the bonus. That's leaving ~10% of external revenue on the table for no reason.
How to Use Amazon Attribution the Right Way
Enrol in the Brand Referral Bonus first. Before you spend a rupee or a dollar on external traffic. It changes your break-even CPC, which changes your bidding.
Calculate your break-even external CPC using the contribution math above — with the bonus included. Write the number down. That's your bid ceiling.
Build a tag structure, not a tag. Publisher, then campaign, then creative. One tag per combination you'd ever want to make a separate decision about.
Tag every external link you control. Paid ads, email footers, influencer bios, your own site's "Buy on Amazon" button, QR codes on inserts. Anything untagged is invisible and unpaid.
Wait 14 days before you judge anything. Then look at purchase rate and new-to-brand percentage, not clicks.
Compare against on-Amazon PPC on contribution, not ROAS. External traffic with the bonus and a strong new-to-brand rate can beat a same-ROAS PPC campaign on actual profit.
How Sellerview Helps You Track This
External traffic changes your unit economics per SKU — new fee credits, new ad costs, new return patterns — and none of it shows up cleanly in Seller Central. Sellerview tracks your real profit SKU by SKU so you can see whether that Meta campaign actually made you money after every fee and return.
Amazon Attribution isn't an advanced tactic. It's the difference between knowing and guessing — plus roughly 10% of your external revenue back. If you're running any off-Amazon traffic without it, that's the cheapest fix available to you this week.
See your real profit on Sellerview.ai → start your free trial