05 · Resources
E-commerce, platforms and product data
22 articles
Choose and price7 min
Real payment fees: Stripe, PayPal and Shopify Payments
A payment fee advertised at 1.5% often costs more: a fixed part, premium or foreign cards, currency conversion, disputes, refunds. The public price lists of Stripe, PayPal and Shopify, the calculation on a real basket, and what matters beyond the rate.
Practical guide8 min
A catalogue of thousands of products: AI under control
On a hundred product pages, one person reviews everything; on ten thousand, full review becomes impossible, and a faulty prompt repeats itself everywhere overnight. The process that keeps control of mass enrichment: sorting, sampling, batches, automated checks, targeted review and the ability to roll back.
Practical guide5 min
Product page that converts: what buyers look for
Before paying, buyers check four things: what exactly the product is, what they will pay in total, when they will receive it and what happens if it does not suit them. A page that answers those questions sells better than a page full of fine phrases.
Practical guide6 min
Product returns: a hidden cost to manage, not to endure
A return does not just cost the refund: there is shipping, inspection, restocking, the product that sometimes cannot be resold and customer service time. How to measure that cost, reduce avoidable returns and keep a simple process, within the legal framework.
Choose and price7 min
Amazon alongside your own store: margin, stock, dependency
Amazon brings an audience no store finds on its own, but every sale there pays a subscription, a referral fee and often the logistics, under rules the platform sets. How to judge whether the channel pays, without losing your stock or your customers to it.
Choose and price5 min
Shopify: when one more app costs more than it earns
Every Shopify app promises one more sale; each one also adds a subscription, code on the store and a dependency. How to count what it really costs, and when removing it pays more than adding it.
Choose and price6 min
Shopify or Medusa: which to choose for an SME?
Shopify charges a subscription and sometimes a commission; an open source platform like Medusa costs nothing in licence fees but needs a team to develop and run it. Here is how to compare the two over three years, and when each one wins.
Practical guide8 min
Store emails: welcome, post-purchase, repeat purchase
Three automated emails do most of an online store's work between campaigns: the one that welcomes, the one that follows the order, the one that brings customers back. What each should contain, who you are allowed to send it to, and how to keep them out of the spam folder.
Understand6 min
Websites are closing the door on AI agents: and yours?
Amazon, Yelp, Delta, JPMorgan: in October 2026, major websites are blocking the AI agents that buy or book for their users, while others sign partnerships. For an online store, the question is not all or nothing, but which actions to open to which agent.
Practical guide8 min
Product descriptions and AI: writing without making anything up
An AI can write hundreds of product descriptions overnight, and slip in a size, a material or a promise nobody has checked. The order of work that avoids this trap, what Google asks of a description, and what must stay in the hands of a reviewer.