Polymerchant

One catalogue, synced stock and every order in one place, across 26 marketplaces, retailers and social shops, plus the shops on your high street.

Book a 20-minute demo
Services
  • Marketplace management
  • Listing optimisation
  • Product feeds
  • Pricing and Buy Box
  • Account health
  • Orders and customer service
  • Marketplace launches
  • Retail and wholesale
  • Marketplace advertising
  • Competitor insights
  • Performance reporting
  • Brand protection
  • Shopify Collective
Marketplaces
  • Amazon
  • eBay
  • TikTok Shop
  • Etsy
  • OnBuy
  • Fruugo
  • Argos
  • B&Q
  • Tesco
  • The Range
  • Wilko
  • Wayfair
  • Debenhams
  • Integrations
Who we help
  • Already selling on marketplaces
  • DIY and tools
  • Electronics and electricals
  • Fashion and accessories
  • Handmade and personalised
  • Health and beauty
  • Home and garden
  • New to marketplaces
  • Pet products
  • Toys and gifts
Company
  • About
  • Retail and wholesale
  • Guides
  • Glossary
  • FAQ
  • Book a demo
  • Sign in

© 2026 TapMate LTD. Polymerchant is run by TapMate LTD, a company registered in England and Wales (company number 16353666). Registered office: 18 Gaunt Drive, Bramley, Rotherham, S66 3YJ.

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Polymerchant
Services
Run your channels
  • Marketplace managementDay-to-day running of your marketplace accounts
  • Listing optimisationTitles, images and keywords that get found
  • Product feedsClean product data and catalogue management
  • Pricing and Buy BoxCompetitive prices that protect your margin
  • Account healthPerformance metrics, policy warnings and appeals
  • Orders and customer serviceOrders, returns and buyer messages, on time
Grow
  • Marketplace launchesNew marketplaces, set up properly from day one
  • Retail and wholesaleGet stocked by shops you can walk into
  • Marketplace advertisingAmazon, eBay and TikTok Shop ads, run to a budget
  • Competitor insightsWhat competitors charge, sell and get wrong
  • Performance reportingOne clear report: what sold and what's next
  • Brand protectionBrand Registry, hijackers and copycat sellers
  • Shopify CollectiveSell through other UK Shopify stores
In-storeShelves you can walk intoWe place your products with independent shops and handle wholesale for you.Retail and wholesale →
Marketplaces
Online marketplaces
  • AmazonListings, Buy Box, Brand Registry and FBA
  • eBayBest Match, item specifics and eBay Shops
  • TikTok ShopCreators, shoppable video and LIVE selling
  • EtsyHandmade, personalised, vintage and original designs
  • OnBuyUK-founded marketplace with simple, published fees
  • FruugoSell abroad from one feed, translated for you
Retailer marketplaces
  • ArgosCurated marketplace, live since August 2026
  • B&QHome improvement marketplace on diy.com
  • TescoCurated marketplace on tesco.com, run on Mirakl
  • The RangeHome and garden marketplace with no monthly fee
  • WilkoReached through The Range Marketplace
  • WayfairSupplier programme for furniture and home goods
  • DebenhamsOnline department store run as a marketplace
All 26 channels →
Integrations
Resources
Guides
  • Amazon Brand RegistryAmazon
  • What is the Amazon Buy Box (Featured Offer) and how do you win it?Amazon
  • Amazon UK seller fees explainedAmazon
  • eBay vs AmazonStrategy
  • GTINs and barcodes explainedOperations
  • How to start selling on Amazon UKAmazon
All guides →
Who we help
  • Already selling on marketplacesFlat sales, stale listings or no time to manage
  • DIY and toolsPower tools, hand tools, hardware and building supplies
  • Electronics and electricalsTech, accessories, smart devices and appliances
  • Fashion and accessoriesClothing, footwear, bags, jewellery and accessories
  • Handmade and personalisedMakers, small-batch and made-to-order products
  • Health and beautySkincare, cosmetics, haircare, wellness and supplements
All industries →
Learn
  • FAQPricing, contracts and how it works
  • GlossaryMarketplace terms in plain English
  • About PolymerchantHow we work and what we stand for
Sign inBook a demo
Run your channelsMarketplace managementListing optimisationProduct feedsPricing and Buy BoxAccount healthOrders and customer service
GrowMarketplace launchesRetail and wholesaleMarketplace advertisingCompetitor insightsPerformance reportingBrand protectionShopify Collective
All services →
Online marketplacesAmazoneBayTikTok ShopEtsyOnBuyFruugo
Retailer marketplacesArgosB&QTescoThe RangeWilkoWayfairDebenhams
All marketplaces →
Integrations
GuidesAmazon Brand RegistryWhat is the Amazon Buy Box (Featured Offer) and how do you win it?Amazon UK seller fees explainedeBay vs AmazonGTINs and barcodes explainedHow to start selling on Amazon UK
Who we helpAlready selling on marketplacesDIY and toolsElectronics and electricalsFashion and accessoriesHandmade and personalisedHealth and beauty
LearnFAQGlossaryAbout Polymerchant
All resources →
Book a 20-minute demoSign in
Home/Services/Marketplace management
Marketplace management

Marketplace management that doesn't run on spare time.

We run the daily work on your marketplace accounts: listings, orders, customer messages, stock, pricing and account health. One catalogue feeds every channel, stock stays in sync and every order sits in one place. You keep control of every decision, without doing the hours of work behind them.

Book a 20-minute demoAll services
The problem

Marketplaces reward daily attention, and many businesses can only give them what's left at the end of the day.

We take on the daily running of each account, keep watch on the numbers that matter and bring you decisions, not admin.

The rules keep moving

Marketplaces change their requirements often. On Amazon UK, new product titles must now be 75 characters or fewer, including spaces. Miss a change and listings can be corrected for you, or drop out of search.

Metrics slip quietly

Amazon expects an Order Defect Rate (orders with negative feedback, an A-to-z Guarantee claim or a chargeback) under 1%, and a late dispatch rate under 4% on orders you ship yourself. One busy fortnight can push you over.

Every channel is different

Amazon, eBay and TikTok Shop each have their own tools, deadlines and scores. Juggling them alongside your website and the rest of your business is where things get missed.

What we do

What's included. Done by the people you talk to.

Listings and product uploads

We add new products, keep titles, images and descriptions within each marketplace's rules, and fix suppressed or incomplete listings. More on listing optimisation.

Orders and customer messages

We watch new orders, dispatch confirmations, cancellations and returns, and answer buyer messages within each marketplace's deadlines. On eBay, for example, you have 3 business days to respond when a buyer reports a problem, before they can ask eBay to step in.

Stock and pricing

We keep marketplace stock and prices in line with the rules we agree with you. Stock and orders sync across every channel and your website, and we review your pricing and Buy Box position.

Account health checks

We check each account for policy warnings, IP complaints and performance problems, and deal with them before a warning becomes a suspension. Amazon's Account Health Rating runs from 0 to 1,000, and a score below 200 means the account is at risk of deactivation.

Fulfilment set-up

Orders can drop into your existing setup to pick, pack and ship, or the marketplace can store and ship your stock, as with Fulfilment by Amazon. We set up whichever suits each product and keep delivery settings accurate.

Decisions brought to you

You deal with us directly. When something needs your say, such as a price change, a promotion or a new product, we bring it to you with a clear recommendation.

What you get
  • Accounts looked after every day, not when someone has a spare hour.
  • Problems caught early, before they cost you listings or selling privileges.
  • Every decision still yours, with a clear recommendation attached.
  • Accounts, listings and reviews that stay in your company's name.
How it works

From first call to running.

1

Book a demo

In a free 20-minute demo we look at your products and the channels you sell on today, show where you could sell next and what it would cost, and walk through how a launch works. Book a 20-minute demo.

2

Setup and quick wins

We tidy existing accounts or open new ones in your company's name, build product feeds and put the quick wins we agree with you in first. Nothing goes live without your approval.

3

Day-to-day running

Orders, messages, returns, stock, pricing and account health, handled every day within each marketplace's rules.

4

Report and review

A monthly report shows what sold, what it cost and what we'll do next. Weekly sales reporting is there if you need it.

Where we do it

Amazon

Marketplace guide →

eBay

Marketplace guide →

TikTok Shop

Marketplace guide →

Etsy

Marketplace guide →

OnBuy

Marketplace guide →

B&Q

Marketplace guide →

Argos

Marketplace guide →

Debenhams

Marketplace guide →
FAQ

Marketplace management questions.

Do we lose control of our accounts?
No. Accounts are always in your company's name, nothing goes live without your approval, and you can remove our access at any time. If you stop working with us, your listings, reviews and sales history stay with you.
How much of our time will this take?
Very little. Your part is approving changes, sending us new product information and, if you ship orders yourself, packing and dispatching them. We handle the rest and flag anything that needs a decision.
What happens if a marketplace suspends a listing or the account?
We work out why from the account health page and the notices you've received, fix the cause and, where needed, draft the appeal or plan of action for your approval. On Amazon, repeat breaches of the same policy count more heavily each time, so fixing the root cause matters.
Which channels do you manage?
General marketplaces such as Amazon, eBay, TikTok Shop, Etsy and OnBuy, and retailer marketplaces such as B&Q and Argos where they accept you as a seller. You choose how many channels we run. See all marketplaces.
Do we still ship the orders?
That's your choice. Orders can drop into your existing setup to pick, pack and ship like any website order. Or the marketplace can store and ship your stock for you, as with Fulfilment by Amazon.

Related services.

Listing optimisation

Titles, images and keywords that get found

Read more →

Account health

Performance metrics, policy warnings and appeals

Read more →

Orders and customer service

Orders, returns and buyer messages, on time

Read more →

See where your products could sell. In 20 minutes.

Book a free 20-minute demo. We look at your products and where you sell today, show you the channels worth adding and walk you through a launch. You get a clear quote afterwards. No cost, no obligation.

Book a 20-minute demoWhat we do