Guide chapters
§ - Important Disclaimer Regarding the Nature of the Material00 - How to use the guide01 - First choose the business and responsibility model, then build the marketplace02 - Construction plan: what must exist and when03 - Responsibility Matrix: Operator, Seller, and Suppliers04 - Seller Onboarding: Whom to Allow to Sell05 - Product card: information without which an offer cannot be published06 - GPSR: Product Safety in Practice07 - Product Category Gates08 - Packaging and EPR: who is actually responsible09 - Consumer Law: Sale, Withdrawal, and Complaint10 - Prices, Promotions, Ranking, Advertising, and Reviews11 - Payments, Payouts, VAT, and Sales Documents12 - GDPR without myths: what to record, where, and on what basis13 - DSA: reporting, moderation, and seller traceability14 - P2B: fair rules for business users15 - DAC7: seller data and annual reporting16 - E-commerce accessibility from June 28, 202517 - Cybersecurity and NIS218 - Retention: How long to store data and evidence19 - Post-launch operations: calendar and owners20 - Four business models - specific decisions21 - Document and Procedure Package to Prepare22 - GO / NO-GO Checklist Before Launch23 - Most Common Misconceptions24 - Sources and Update Principle

Important Disclaimer Regarding the Nature of the Material

This material is for informational and educational purposes only. It contains the author's interpretation of general provisions, official materials, and practical ways to organise a marketplace based on the sources available as of the indicated date. It does not constitute legal, tax, accounting, technical or investment advice, or an individual assessment of product, seller or platform compliance. It does not guarantee completeness or compliance for a specific implementation, as obligations depend on the actual business model, product categories, party status, sales countries, and current authority practices.

The material should not be the sole basis for business decisions, launching sales, approving products, or choosing settlement methods. Before implementing a solution in a specific business, verify the current legal position and - where the risk or business model requires it - obtain an individual assessment from a qualified lawyer, tax adviser, accountant, or product specialist. Publication or distribution of the material does not create an advisory relationship with its author. This disclaimer does not exclude liability that cannot be excluded under mandatory provisions.

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