Selling on marketplaces: what to know before you start
Practical notes on opening a store, sending products, keeping stock in sync and handling buyer questions.
A marketplace asks for a different operational discipline than your own site. Listing the product is the beginning; the real work comes after it is listed.
Product matching
Managing the same product separately on your own site and on the marketplace is the main cause of stock errors. Matching on barcode and stock code and feeding from a single source removes the "sold it but it is not in stock" situation.
Stock and price sync
When the last unit sells it has to close on every channel. In a setup updated by hand that is close to impossible. On price, because every channel has a different commission rate, per-channel pricing is healthier than a single price.
Campaigns
Marketplaces open campaigns often and joining usually needs manual approval. Stay out and visibility drops; join without thinking and your margin erodes. Setting a minimum margin rule and deciding by it is the most practical way.
Buyer questions
Response time feeds directly into marketplace performance metrics. Most questions repeat each other; building a set of ready answers for the frequent ones saves hours a day.
Returns and cancellations
In categories with a high return rate (clothing, footwear) work out profit together with the return cost. A size table and realistic photos bring the return rate down.
