Marketplace or Your Own Online Store? A Decision Guide for European SMEs

The wrong question

For a lot of European SMEs, the first ecommerce question gets framed as either/or: sell on Amazon or Etsy, or build your own store? That framing misses the point. The real question isn't which channel to pick — it's how to combine them without losing margin or control.

What marketplaces actually cost

Marketplaces bring instant reach: Amazon, Etsy, bol.com, Allegro and similar platforms already have the buyers, the payment infrastructure and the trust. That convenience has a price. Amazon typically charges a referral fee in the 8-15% range on top of a monthly seller fee, Etsy adds a transaction fee plus payment processing on top of its listing fee, and even lower-fee platforms like bol.com or Allegro can still land in the 5-15% range depending on category. Add fulfilment, storage and advertising costs, and the all-in cost of a marketplace sale often lands well above the headline commission. On top of that, your product sits next to a competitor's near-identical listing, usually sorted by price — which makes it hard to compete on anything other than price.

The real value of your own store: the customer relationship

When you sell through your own store, you're not just avoiding commission — you own the customer relationship. You know who bought, what they bought, and you can email or retarget them for the next purchase without paying a platform for that access. On a marketplace, that customer belongs to the platform, not to you; you get a transaction, not a relationship. For SMEs operating in the EU, this also has a compliance dimension: when you collect and process that customer data yourself, you're accountable for it under GDPR, which means the technical and legal groundwork — consent, storage, retention — needs to be right from the start, not bolted on later.

The balance that actually works: a hybrid model

The healthiest pattern we see is treating marketplaces and your own store as complementary channels, not competing ones. Marketplaces are a strong acquisition channel, especially for testing new products or building initial sales volume before your brand has search visibility of its own. Your own store is where long-term margin and brand equity get built: it earns organic traffic through SEO, tells your brand story properly, and keeps a larger share of every sale. For a manufacturer or a boutique brand selling across the EU, that typically means keeping strong sellers listed on marketplaces while investing in content and campaigns that build direct, organic demand for the same products on your own site.

The operational risk nobody mentions

The part of the hybrid model that gets skipped is operations. If the same product is listed on your own store and on two or three marketplaces, manually updating stock and pricing across all of them eventually breaks something: overselling an out-of-stock item, mismatched prices, or a missed order. Your own store needs to be built with marketplace integration in mind from day one, so stock, orders and invoicing run from a single system rather than four disconnected ones.

Where to start

Start by looking at what's already selling on marketplaces and which searches are bringing buyers to those listings. Use that to build an SEO-optimised store around your strongest products, then plan an integration layer that keeps stock and orders synced across every channel. At Ares Yazılım, we build online stores for European SMEs with marketplace integration designed in from the start, so growth doesn't stay dependent on commission-based channels.