Every marketplace is a search engine with a checkout. Winning means being found, looking trustworthy and pricing with discipline — the physics are the same on Trendyol, Amazon or Hepsiburada.
Commission, shipping, VAT and returns eat margins silently. Know your real cost per sale before matching a competitor's price. (Our free Marketplace Profit calculator on the Tools page does exactly this.)
Fast shipping and fast answers drive your seller score; the score drives visibility. Early reviews are worth more than early profit.
Bottom line: treat listings like SEO pages, defend margins with math, and protect your seller score above all.