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

Product Category Gates

GPSR does not replace specific regulations. A general marketplace cannot open a category just because a product card has a "manufacturer" field. For each category, the operator approves a list of required information and evidence, and then checks it before publication.

CategoryMain additional requirementsWhat the platform blocks without proof
ToysCE marking, conformity assessment, EU declaration, age warnings, and identificationpublication without CE/declaration/warnings appropriate for toys
Electrical and electronic equipmentrelevant CE regulations, electrical/EMC/RoHS safety, WEEE and EPR, energy labels where applicableimport without an EU entity, lack of declaration, EPR registration number, or mandatory label
Batteries and products with batteriesbattery regulation, markings, safety, EPRoffer without battery type, information, and proper registration of the responsible entity
Cosmeticsresponsible person in the EU, CPNP notification, safety assessment, INCI, warnings, and compliant marketing claims"homemade" cosmetic without a responsible person and documentation
Food and supplementsfood business registration, information on ingredients, allergens, nutritional value, shelf life, origin, and prohibition of misleading claimssale without complete labeling and a proper food business operator
Food contact materialsmaterial compliance, appropriate declarations/migration tests, conditions of usecup, dish, or packaging without proof appropriate for the material and intended use
Medical devicesMDR/IVDR, CE, authorized roles, information, and advertising restrictionsmedical device without a complete conformity pathway; the category requires a separate compliance owner
Chemicals, candles, detergentsREACH/CLP or product-specific regulations, classification, label, warnings, notifications where applicableproduct without composition/classification and labeling required for the risk
Textiles and footwearfiber/material composition, identification, safety, and consumer informationgeneric description without required composition
Personal protective equipmentrelevant PPE regulations, CE, declaration, and instructionshelmet, protector, or similar product without a declaration and proper marking
Products for childrenhigher risk assessment, warnings, standards, and product-specific regulationsautomatic publication without manual category control

Category opening rule#

  1. The category owner describes the products and typical risks.
  2. A specialist indicates the legal acts, evidence, public information, and rejection criteria.
  3. The platform adds required fields and the ability to attach documents to the offer/seller. In MVP, it can use an existing file storage and manual validity status; a dedicated repository and automatic reminders are a scaling stage.
  4. The operations team receives simple instructions with examples.
  5. The category undergoes testing with real offers, including imports and handmade items.
  6. Only then is it available to sellers.
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