As a rule yes, for service providers selling through their own website or mobile application. The obligation comes from the Law on the Regulation of Electronic Commerce (No. 6563) and the ETBİS regulation, and a registration in the Electronic Commerce Information System (ETBİS) can be verified publicly through the system itself.
Where you sell only through a marketplace — an intermediary service provider — the notification duty rests as a rule with the platform. But if you run your own site alongside a marketplace, your own channel still has to be registered. Registration also comes with the expectation that the site carries an imprint, a distance sales contract and pre-contractual information texts. We set the registration up together with those mandatory disclosures, and put the updates and notifications triggered by a turnover threshold or a change of activity onto a schedule.
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