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Wojciech Piszczek

I’ve been immersed in e-commerce for more than ten years, with a core focus on helping brands scale onto international platforms like Amazon, eBay, Kaufland, and eMAG. My experience covers the entire sales lifecycle—from high-level strategy and logistics to marketing and conversion optimisation. I help businesses not only enter new markets but scale sustainably, ensuring they avoid the costly pitfalls often faced by those just starting out.

PPWR and online selling: authorised representative in Germany, LUCID, BDO and EPR numbers on marketplacesE-commerce

PPWR and online selling: authorised representative in Germany, LUCID, BDO and EPR numbers on marketplaces

The PPWR, the EU regulation on packaging and packaging waste, has applied since 12 August 2026 and affects every business that ships packaged goods to customers, including online shops and marketplace sellers. The biggest changes are for businesses that sell abroad, because in Germany, for example, a business with no branch there that sells directly to customers must now have an authorised representative and an entry in the LUCID register, and anyone who registered earlier must add an authorised representative by 12 November 2026. At the same time, Amazon, Kaufland and Allegro are already collecting EPR numbers and checking them ever more closely.

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Allegro Discussions and the Message Center: what has changed for sellers since 28 October 2026Allegro

Allegro Discussions and the Message Center: what has changed for sellers since 28 October 2026

Since 28 October 2026, a buyer who has trouble with an order no longer opens a Discussion with most sellers but reports a purchase problem instead, and this reaches the seller as a thread in their messages. Allegro announced the change on 5 October in a notice to buyers and set out the rules for sellers on its official help page about purchase problems, on which this guide is based. In it, we explain where to look for new reports, how much time you have to reply and to resolve the case, when a thread closes on its own, how reports affect sales quality and what you need to check in your customer service software. Everything here reflects the rules as of 2 November 2026, so before making an important decision it is worth checking whether Allegro has clarified any of them since.

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How to choose an Allegro agency: 8 criteria and the questions to askAllegro

How to choose an Allegro agency: 8 criteria and the questions to ask

You can tell a good Allegro agency by the way it backs up its results with specific data, tells you plainly who will run your account and doesn’t lock you into a long contract. Partner status, client reviews and price all matter, but none of them is enough on its own, which is why it’s worth weighing them together and by the same standards for every firm you talk to.

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Amazon AWD - the Amazon warehouse launching in Europe in August 2026Amazon

Amazon AWD - the Amazon warehouse launching in Europe in August 2026

Amazon AWD is a low-cost bulk storage service in which Amazon holds your inventory in large quantities and automatically sends it on to FBA as your goods sell. It is the ‘upstream’ layer, meaning the back-end storage that sits one step ahead of the fulfilment warehouse your end customers buy from.

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What is the Pigu marketplace and how do you start selling there?Pigu

What is the Pigu marketplace and how do you start selling there?

More and more sellers are looking for markets that are less crowded and where demand is still growing. One of them is the Baltic region – Lithuania, Latvia and Estonia – where Pigu is the undisputed leader in online sales. If you’re wondering what exactly this platform is and whether it’s worth selling on, read on.

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Is it worth expanding to Amazon France? Earnings and potentialAmazon

Is it worth expanding to Amazon France? Earnings and potential

France is the second-largest economy in the European Union and one of the absolute leaders in European e-commerce. For sellers operating on Amazon, expanding to the .fr version of the platform sounds like a natural step towards scaling the business. And indeed, French consumers have deep pockets and love shopping online.

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Zalando marketplace: how to sell and what it costs in 2026Zalando

Zalando marketplace: how to sell and what it costs in 2026

On Zalando, you sell through the Partner Program: you pay €40 a month plus 5 to 25 per cent commission, and the platform alone decides who gets in. It pays off for fashion brands with margins that can carry that commission and high returns, and that are ready for formalities such as VAT and EPR. For everyone else, it’s a road where you’re more likely to lose time than make money.

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Allegro Ads Express: what it is and how it works, step by stepAllegro

Allegro Ads Express: what it is and how it works, step by step

Allegro Ads Express is a tool in which an algorithm makes most of the decisions for you – you set a daily budget and keep an eye on the results. It sounds convenient, but it raises a question: does this kind of automation actually pay off, or does it simply hand control of your money over to a machine? In this article, we show how Allegro Ads Express works step by step, what it really costs and – most importantly – when it's worth using and when you're better off with a manual campaign.

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Terapeak: what it is and how to check demand on eBay (2026 guide)eBay

Terapeak: what it is and how to check demand on eBay (2026 guide)

Before anyone invests a single penny in stock destined for eBay, they should ask themselves one question: is anyone actually buying this, and for how much? The problem is that eBay’s standard search only shows sold listings from the last 90 days, which isn’t enough to tell whether a product is a steady seller or just a passing fad.

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