Allegro and marketplaces

Marketplaces as a sales channel next to your own store. The articles set what Allegro — the main marketplace in Poland, with 15.6 million active buyers in Q2 2026 — charges in commission and Smart! delivery fees against selling from your own store, order by order, walk through marketplace API integration with Allegro as a worked example, and cover stock sync and the risk of overselling. They also show how far marketplaces reach Polish shoppers (89% monthly reach in the Gemius panel) compared with specialist stores, plus supplier feeds, order automation, fulfilment and TikTok as a newer channel. For sellers starting on a marketplace or moving part of their sales to their own store. Start with selling on Allegro and other marketplaces.