London, UK

Marketplace Management in London

Amazon UK, eBay and the EU marketplaces are rented shelf space with a customs border running through them — we run the channel so it introduces buyers your own store then keeps.

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Delivered remotely for brands across London and United Kingdom.

Grow · London

Why London brands come to us for this

Listings written in British English and British search terms, because feed and marketplace copy translated from a US catalogue simply does not surface
Brand Registry, A+ and Brand Story modules produced to platform spec inside this service, since the formats are fixed and unusable elsewhere
EU producer registrations and VAT groundwork completed before EU listings go live, because platforms enforce by delisting
eBay assessed on your category's real UK demand rather than on how the channel looks in a brand deck
Advertising judged on contribution after referral fee, fulfilment, VAT and returns — never on ACoS in isolation

Amazon UK is the centre of gravity for almost every London brand that sells online, and the account work starts in the catalogue rather than the ad console. Titles written in British terms, because a listing that says sneakers does not surface for trainers. Variation families structured so a size run pools its reviews on one parent instead of scattering. Backend search terms populated rather than stuffed with the brand name three times. Brand Registry enrolled so the A+ and Brand Story modules are available at all, and those modules built to the platform's fixed image and copy specs — which is why that production sits inside this service rather than with the brand-creative work. Suppressions and stranded inventory traced to a cause: a missing safety document, a category node the item does not belong in, a compliance field left blank at listing creation.

The second layer is the one Brexit created and nobody enjoys. UK and EU inventory are separate pools, so stock sitting in a British fulfilment centre is not quietly serving a German order the way it once did, and opening the EU marketplaces means a European fulfilment plan, EU VAT handled through the OSS scheme where applicable, and producer registrations — packaging, electricals, batteries — filed in the countries that require them before listings go live. Platforms enforce those registrations by delisting, not by emailing a reminder, so this is groundwork rather than admin. It also changes the maths: an EU listing that looks profitable on ACoS can be underwater once the referral fee, the fulfilment charge, VAT and the return rate are taken out, which is why targets here are set on contribution per unit rather than on a platform ratio.

Then the channels British buyers actually use, which is where London differs from an American plan. eBay remains a genuinely large UK marketplace and a serious one for spare parts, refurbished stock, collectables, discontinued lines and anything where a buyer is searching for a specific fit or model number — a channel a lot of brands dismiss on aesthetics and then discover their competitors quietly clearing stock on. Etsy carries the maker end of this city properly, which matters for the jewellery, ceramics and small-batch producers Hatton Garden and east London keep turning out. TikTok Shop earns a place where the product demonstrates on video and the margin can absorb both the platform fee and a creator commission. And across all of them the same rule holds: the marketplace supplies the first order, your Shopify store is where the repeat lives, and the routes back are the ones the platform permits — inserts, permitted follow-up tools, pack sizes and bundles that only exist on your own site.

Two stock poolsUK and EU inventory planned and forecast separately, because cross-Channel fulfilment stopped being frictionless

Registrations firstEU VAT and producer-responsibility numbers in place before listings publish, not after a delisting notice

Contribution per unitthe number ad targets are set from, calculated after every platform fee and expected returns

Local context

One customs border, two stock pools, and an eBay audience that never went away

London brands hit marketplace problems in a specific order. First, the split: an account that grew up serving Britain and Europe from one warehouse now needs two answers, and the honest sequence is to make the UK channel properly profitable before paying for European registrations and a second inventory pool. Second, gating. The categories this city is strongest in are the ones platforms restrict hardest — food and drink needs ingredient, allergen and shelf-life data in fields most brands leave empty; supplements and sports nutrition need claims that survive review; cosmetics need compliant ingredient content; and alcohol is largely off the table, which quietly rules out a slice of the Bermondsey and Hackney producer base. Third, channel fit. A Hatton Garden jeweller and a Park Royal food producer should not be given the same platform list: made-to-order fine jewellery belongs on Etsy and your own store, not in a fulfilment centre, while a fast-moving ambient food line is exactly what Amazon's logistics are built for. We pick the two channels your category actually lives on and run those well, rather than opening five and maintaining none.

Scope

What Marketplace Channel includes

The same standard of work we run for every client — applied to a London brand’s realities.

Full service detail

Catalogue & Listing Rebuild

Titles, bullets, backend search terms, variation parentage and category nodes rebuilt across Amazon Seller or Vendor Central, TikTok Shop and Walmart. Suppressions and stranded inventory fixed at the cause, not resubmitted.

Brand Registry, A+ & Brand Story

Brand Registry enrolment, A+ and Premium A+ modules, Brand Story and Storefront pages built to each platform's image and copy specs. Produced inside this service because the formats are fixed.

Fulfilment & Fee Economics

FBA against FBM modelled per SKU on size tier, storage, return rate and reimbursement recovery. Some products should never enter a fulfilment centre, and we name which of yours.

TikTok Shop & Creator Seeding

Catalogue sync, listing compliance, sample seeding to affiliates, and live and video commerce, run as a mechanic of this channel rather than as a separate affiliate programme.

Channel Strategy & the Route Back

SKU allocation, MAP and pricing alignment, marketplace-only bundles and pack sizes, plus the permitted paths home: package inserts, Brand Registry tools and platform-allowed follow-up.

Scoped and quoted for your London store

We do not work off a rate card. Every London engagement starts with a fixed statement of work — named deliverables, named dates, one number — written after we have looked at your store, not before. If a smaller first step would serve you better, we will say so.

Get this scoped

How it runs

From kickoff to results

Account & Catalogue Audit

Listing quality, suppressions, buy-box history, variation structure, the fee and returns reports and ninety days of search terms. You get the findings whether you hire us or not.

Fix the Listings

Parentage, titles, backend terms, imagery and A+ rebuilt before any spend moves. Advertising a listing that converts badly buys traffic for whoever else is in the carousel.

Draw the Channel Lines

Which SKUs sell where, at what price, in what pack size, agreed with you in writing. The marketplace should not be bidding against your own store for the same order.

Advertise to Margin

Sponsored campaigns rebuilt by intent and margin band, with ACoS and TACoS targets derived from contribution per unit after referral, fulfilment and return costs.

Compound & Route Back

Weekly search-term mining, monthly fee and reimbursement review, and the insert and registry mechanics that give a marketplace buyer a reason to reorder on your site.

FAQ

Marketplace Channel in London — your questions

More operations than marketing. You need EU VAT handled correctly for the countries you sell into, producer-responsibility registrations where they are required, translated and locally written listings rather than English ones with a currency swap, and a fulfilment plan for inventory held inside the EU — UK stock no longer flows across the border the way it did. The advertising is the easy part. We would rather see a UK account running at healthy contribution first, because the same listing weaknesses cost five times as much when they are replicated across five countries.

It depends entirely on your category, and the reflex to dismiss it is often wrong in this market. Britain has an unusually large and habitual eBay buying population, and the channel remains strong for parts, compatible and replacement items, refurbished stock, discontinued lines and anything bought by model number. It is a poor fit for a considered brand-led purchase where the customer is buying a story rather than a specification. We look at where your category's demand actually sits before recommending it, and we will say no when the answer is no.

Almost always compliance data rather than content. These categories carry mandatory attributes — ingredients, allergens, net quantity, storage and shelf life, warning statements, and documentation the platform can demand at any point — and a listing created without them will publish and then be pulled during a sweep. Resubmitting the same listing gets you the same outcome a month later. We fix the underlying attribute and documentation set once, then keep it current, which also makes the equivalent work on your own store's product data considerably easier.

ConversionEX has one office, in Albuquerque, and no UK entity or staff, so we are candid about the gap: London runs seven hours ahead of us. In practice marketplace platforms are already asynchronous — appeals, case responses and performance notifications arrive on their own schedule regardless of who is watching. What matters is that alerts route to a monitored place rather than a personal inbox, that agreed actions like pausing a campaign or pulling a suppressed listing do not wait for a call, and that our morning starts with your afternoon still open for anything that needs a decision from you.

It can, and that is the failure mode we manage against rather than pretend away. Marketplaces are rented shelf space: the platform owns the shopper, sets the fees and can change both without asking. We use them for the thing they are genuinely good at, which is putting your product in front of people who have never heard of you, then arrange pack sizes, bundles and pricing so the reorder has a reason to happen on your own store.

Not directly, and treat anyone who promises it as a liability. Amazon does not give sellers the buyer's email address, and mining order reports to build a marketing list breaks their terms. The legitimate routes are package inserts offering registration, warranty or a refill incentive, Brand Registry tools such as Customer Engagement and Brand Tailored Promotions that reach your followers inside Amazon, and Buy with Prime on your own storefront where the economics hold. Slower, and it survives an audit.

Google and Meta buy traffic for a store you control. A marketplace is a sales channel with its own search engine, its own ad auction, its own fulfilment network and its own fee schedule. The reporting never reconciles with your Shopify numbers, the failure modes are suppression and buy-box loss rather than creative fatigue, and nothing means anything until the unit economics are modelled after fees.

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Next step

Marketplace Channel for your London brand.

Thirty minutes with the strategist who would actually run your account. We screen-share your store, read your data live, and tell you the three highest-value things we can see from the outside.

Shopify or Shopify Plus stores doing $150k/mo or moreFounder, CEO or eCommerce lead on the callNo deck and no pitch — we open your store instead

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