A new marketplace, easyShop, is launching for peak season 2026, and if you already sell on OnBuy you’re closer to being on it than you might think. The reason is OnCommerce: the platform that connects OnBuy, easyShop, and the returning Comet brand, letting sellers reach all three through a single account and a single product catalogue.

But what exactly is OnCommerce, how does the one-account model work, and what does each marketplace offer a seller? This guide breaks it down in plain terms: what OnCommerce is, the three marketplaces it powers, how listings, stock, and payments stay in sync across them, and the early-bird offer that gives you 12 months of subscription free if you join by 31 July 2026. We also cover how to connect your store to all three with Koongo, with no coding required.

What is OnCommerce?

OnCommerce is a marketplace platform that lets sellers reach several online marketplaces through a single seller account. Instead of applying to each marketplace separately and managing them in isolation, you set up one account and your products can appear across the platform’s network.

According to OnCommerce, the platform connects sellers to more than 21 countries and a network of 40+ retail channels, and it reports over 140 million global customers and 100 million products across its marketplaces. The core idea is straightforward: one account, one product catalogue, and access to multiple sales channels without managing each one by hand.

OnCommerce currently powers three marketplaces: OnBuy, easyShop, and Comet.

The three OnCommerce marketplaces

OnBuy

OnBuy is the marketplace that’s live today. OnCommerce describes it as one of Europe’s fastest-growing marketplaces, now operating in more than 21 countries, and reports quarterly sales growth above 150% across key markets.

Two things make OnBuy distinctive for sellers. First, OnBuy says it never holds its own stock, so the marketplace doesn’t compete against the sellers listing on it, unlike marketplaces that also sell their own products. Second, it runs an instant cashback model for shoppers, which OnCommerce links to a 51% returning-customer rate. For a seller, a marketplace that doesn’t compete with you and brings shoppers back is worth a closer look.

easyShop

easyShop is a new marketplace launching in time for peak season 2026, across more than 21 countries in the UK and Europe. It’s part of the easy family of brands, the same family behind easyJet.

The pitch for sellers is the ready-made audience. easyShop launches with the recognition of an established consumer brand rather than starting from zero, and OnCommerce describes a catalogue spanning millions of products across thousands of categories. Because easyShop runs on OnCommerce, sellers already on OnBuy are set to appear on easyShop automatically when it opens, with no separate application.

Comet

Comet is a British retail name returning in 2026 as a specialist marketplace for tech and consumer electricals. OnCommerce positions it as a curated destination rather than a general marketplace, focused on a tighter range of electronics and appliance brands.

For sellers in the tech and electricals category, Comet offers a focused audience and an established brand name. OnCommerce states that Comet will offer free UK delivery on every product, including large appliances.

How the single-account model works

The reason OnCommerce groups these marketplaces together is operational. Managing several marketplaces separately usually means duplicate listings, mismatched stock, and separate payouts. OnCommerce is built to remove that overhead.

Here’s what the platform handles, according to its materials:

• One catalogue per country. You maintain a single inventory per country. Update a price, image, or stock level once, and it syncs across every connected channel.
• Combined payments. Sales from all channels land in one balance, and OnCommerce says its tax engine calculates VAT automatically, which simplifies cross-border selling.
• Automated placement. OnCommerce describes technology that identifies which channels and regions a given product is most likely to sell in, so you list once and the platform distributes.
• One set of rules. Consistent policies and processes across the marketplaces, managed through a single seller control panel, with support from the OnCommerce team.

Pricing starts from £25/month according to OnCommerce, with multi-channel and multi-market selling included as standard. (Confirm the current figure and any EUR equivalent before quoting it to customers in euro markets.)

The early-bird promo: pay 1 month, get 12 months free

OnCommerce is running an early-bird offer ahead of the easyShop and Comet launches. Sign up and pay your first month’s subscription by 31 July 2026, and your next 12 months of subscription are free. Standard selling fees on your sales still apply.

The logic is simple: start selling on OnBuy now, build your sales history and reviews, and be ready to perform when easyShop and Comet go live later in 2026, right before peak season.

We’ve covered the offer in full, including how it works and how to claim it, here: easyShop is coming: 13 months of selling for the price of 1

How Koongo connects your store to OnCommerce

To sell on OnBuy (and on easyShop and Comet as they launch), your store needs to send product data in the format the marketplace requires, then keep stock and orders in sync. That’s the work Koongo automates.

Koongo’s Marketplace Manager is a wizard-based, no-code integration. It connects your store to OnBuy through an API integration, a two-way real-time connection, and handles three things:

• Product sync: your catalogue is mapped to OnBuy’s required fields and formats automatically, including identifiers like GTINs.
• Inventory sync: stock levels update across every connected channel, so you don’t oversell on OnBuy while running low elsewhere.
• Order sync: OnBuy orders import into your store, so you manage everything in one place.

Koongo works with Shopify, WooCommerce, Magento, PrestaShop, BigCommerce, Wix, Shopware, Lightspeed, and custom platforms via API. You can start on a free plan with no credit card required; paid plans start from €24/month with a 7-day free trial.

Because OnBuy listings carry over to easyShop and Comet, one Koongo connection prepares your catalogue for all three OnCommerce marketplaces.

FAQ

What is OnCommerce?

OnCommerce is a marketplace platform that connects sellers to several online marketplaces through one account. It currently powers OnBuy, easyShop, and Comet, and reports access to more than 21 countries and 40+ retail channels.

What marketplaces does OnCommerce run?

Three: OnBuy (live now), easyShop (launching for peak season 2026), and Comet (a tech and electricals marketplace launching in 2026). One subscription covers all three.

Do I need a separate account for OnBuy, easyShop, and Comet?

No. The three marketplaces share one OnCommerce account and one catalogue per country. Sellers on OnBuy are set to appear on easyShop and Comet automatically as those marketplaces launch.

How much does OnCommerce cost?

OnCommerce states that subscriptions start from £25/month, with multi-channel and multi-market selling included. An early-bird offer gives sellers who pay one month by 31 July 2026 their next 12 months of subscription free; standard selling fees still apply.

When do easyShop and Comet launch?

Both are scheduled to launch in 2026, in time for the peak shopping season. OnBuy is already live, and seller onboarding for all three runs through OnCommerce now.

How do I sell on OnCommerce marketplaces?

Register as a seller through OnCommerce (starting with OnBuy), then connect your store with Koongo’s Marketplace Manager. The wizard-based setup syncs your products, inventory, and orders with no coding required.

What makes OnBuy different from other marketplaces?

OnCommerce says OnBuy never holds its own stock, so it doesn’t compete with its sellers, and it runs an instant-cashback model for shoppers that it links to a 51% returning-customer rate.

Want to sell across OnBuy, easyShop, and Comet from one place? Connect your store with Koongo, and read the full early-bird offer here before it closes on 31 July 2026.

Continue reading →