Wiedza dla sprzedawców wielokanałowych
Praktyczne poradniki o sprzedaży na Allegro i Amazon, automatyzacji zamówień, synchronizacji stanów, KSeF i wysyłce — bez lania wody.
Returns & Complaints in E-commerce: Seller Duties
Statutory warranty vs guarantee, 2 years of liability, 14 days to reply and to return, durable medium and exceptions. Seller duties in e-commerce.
VAT OSS for an Online Store — How to File in 2026
The EUR 10,000 EU-wide threshold, VIU-R registration, the quarterly VIU-DO return, and 10-year records — how to settle VAT OSS in e-commerce.
Repricing on Allegro and eMAG: How It Works
Auto-price rules on Allegro and eMAG: how repricing works, how to set a margin floor and price floor, and how to avoid a price war.
Allegro Fees 2026 — What You’ll Really Pay to Sell
The sales commission is charged on shipping too. See how much Allegro really takes in 2026 and calculate your net margin on a concrete example.
KSeF: How to Connect Your Sales System via Token and API
A practical, technical guide: token vs. KSeF certificate, authentication via API 2.0, the FA(3) structure and testing on the MF test environment.
KSeF for microbusinesses — deferral until when 2027
The KSeF deferral for the smallest businesses runs until January 1, 2027. We explain the PLN 10,000 limit, what counts, and when you enter for good.
KSeF and selling on Allegro — how to issue invoices
Receipt or invoice? When KSeF is mandatory for an Allegro seller, what the order→invoice→KSeF workflow looks like, and how to avoid common mistakes.
KSeF Penalties in 2026 — What to Avoid and How to Stay Safe
How much KSeF penalties cost, when they truly take effect, and 8 mistakes to avoid. A practical compliance checklist for e-commerce sellers.
How to Sell on Empik Marketplace: Registration and Commissions
Registration, the 4.5 rating requirement, fees, categories and logistics — everything you need to know before you start selling on Empik Marketplace.
How to Sell on Kaufland Global Marketplace — Guide
Registration, the EAN requirement, the fee model and reach of Kaufland Global Marketplace — a practical onboarding guide for Polish sellers.
How to Sell on eMAG from Poland: Onboarding, Fees, VAT
A practical guide to selling on eMAG from Poland: RO/BG/HU markets, registration, EAN, listing translations, 7–25% commissions, logistics and VAT OSS.
How to Prepare Your Store for Black Friday 2026 — Checklist
Black Friday 2026 operational checklist: inventory, packaging, couriers and SLAs, site performance, and customer service. No fluff, step by step.
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