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Solutions · Rogue sellers

Sellers you never appointed, on shelves you do not control.

Who they are, what they charge, which of your references they hold, and how long they have been there — the evidence needed to trace the supply and get them removed.

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Why it matters

An unauthorised seller is not a small leak.

They did not buy a licence to represent you, but the shopper cannot tell. They undercut the price you set with distributors, take the box off your authorised partners, and answer for your product with no training, no warranty and no obligation to you. Left alone, they teach every legitimate retailer that holding your price is optional.

82% of marketplace sales go through the featured offer

Chart: about four in five marketplace sales go through the featured offer; the remainder reach shoppers who open the other-sellers list.

Merqi names the seller, dates the evidence and traces the supply route, so your team or your counsel can act on a documented case rather than a suspicion.

How the revenue leaks

The price war you did not start, and cannot win.

One unauthorised seller does not stay one problem. It propagates through every legitimate partner you have.

The seller is the symptom. The dated rows are what let you find the source.

Diagram: the four stages by which this problem turns into lost revenue.

What we report

The evidence pack on each seller.

Enough to open a conversation with the account their stock came from.

The seller, named

Store name as displayed, plus every reference of yours they hold.

Across every retailer we read, not one marketplace at a time.

How long they have been there

First seen, last seen, and whether they are growing.

A seller who appeared this month is a different problem to one who has been there a year.

What they charge

Their price against your reference, and against your authorised partners.

Which is often the fastest route to identifying the leak.

The seller view in Merqi, listing every seller found on each reference

In the platform

Every seller on your references.

Ours and theirs, on one screen, with the box holder marked.

How the data is produced

Platform shown through the H.Koenig account, with H.Koenig's permission, for data demonstration purposes.

Related

The same scan, asked differently.

Nothing here is a separate product or a separate fee.

Buy-box recovery What an unauthorised seller takes when they win the featured offer. Buy-box recovery Duplicate listings The pages they build on your references. Duplicate listings The unauthorised-sellers paper Twenty-four pages on what they actually cost, and the remediation ladder that closes the leak. Read the paper

Twenty minutes is usually enough to know.

Twenty minutes on what is happening across your retailers. Or start with a free audit of a handful of your own listings — completely free, and back with you within two days.

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Merqi
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Somebody else is setting your price on six retailers.

Merqi is the enterprise platform that tracks who sells your products, who holds the buy box, and at what price — across the retailers and marketplaces you actually sell through.

Retailers monitored

The problem

Right now, a seller you never appointed a reseller with your stock a marketplace trader an account you cannot name somebody undercutting you is costing you revenue and losing you customers.

They win the sale on a listing you built, to a customer who believes they bought from you. If that order arrives late, damaged or grey-market, you lose a customer and the revenue both — and neither ever appeared in your channel to begin with.

Undercutting is only the visible half. The rest of the damage never announces itself.

And it is never just one thing

Seven ways your distribution leaks.

A lost buy box is the one you can see. Merqi reads all seven on the same scan, so the damage you have not noticed shows up beside the damage you have.

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What it costs you

Why one row matters

Four in five sales never see a second seller.

The featured offer is not a ranking, it is the default. The other sellers sit behind a link most shoppers never open, and on mobile they are not on screen at all. So when someone else holds the box on your listing, the page still converts — for them, on your product, at a price you did not set.

What a lost box actually costs

The size of the prize

10–30%+

revenue our clients can recover

The margin is already yours. Somebody else is taking it.

Every buy box lost to an unauthorised seller is a sale made at a price you did not set, on a listing you paid to build. Recovering those listings, closing the coverage gaps and holding distributors to their terms is where the range above comes from.

See what one scan cycle found

Indicative range. What Merqi recovers for your catalogue depends on how many of your listings are contested and how far price has drifted — the first report tells you which.

How it works

Three workflows, one ledger.

Every finding starts as a row in the same scan. What changes is the question you bring to it.

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Platform shown through the H.Koenig account, with H.Koenig's permission, for data demonstration purposes.

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What you get

Everything happening on other people's shelves.

The first two are what most brands come for. The rest is what they did not know they were missing — and the platform they read it all in.

See everything the platform reads

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On one client account, Merqi reads 4,196 listings across 78 active retailers every day and names every seller holding a box that should have been theirs. Catalogues are unlimited — this is one brand’s shelf, not our ceiling.

July 2026 monitoring cycle, as of 31 July. Platform shown through the H.Koenig account, with H.Koenig's permission, for data demonstration purposes.

Case study and research

What the scans keep turning up.

One client's ledger, and the two questions every brand asks once they have seen it.

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Platform shown through the H.Koenig account, with H.Koenig's permission, for data demonstration purposes.

Go deeper

The rest of it, in detail.

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The monthly newsletter.

The latest intel on how buy boxes are set, new legislation across the jurisdictions we cover, how to enforce MAP legally, and breakdowns on dealing with rogue sellers — and how to approach each of them using the right ecommerce intelligence.

We’ll use your details to respond to this request. See our Privacy Notice.

Twenty minutes on your shelves. Then decide.

Twenty minutes is usually enough to tell whether Merqi has anything to say about your shelves. Or send us a handful of listings first and we will scan them, completely free, with the findings back inside two days.
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No sheets in this export yet.

A workbook is generated at the end of each scan cycle. The first one appears here once your first scan completes.

Get a free audit of your listings

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We’ll use your details to respond to this request. See our Privacy Notice.

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Pick a time

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Buy-box hold rate

Alerts by kind, by week

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Twenty minutes is usually enough to know.

Twenty minutes on what is happening across your retailers. Or start with a free audit of a handful of your own listings — completely free, and back with you within two days.
Book a demo