On June 24, 2026, the Cas d’Or du Digital jury awarded WeTransform and Sellermania in the product catalog management category.
The award recognizes a practical fix to one of the most painful and expensive problems in marketplace selling: getting your product data to actually work across platforms.
A broken process the industry has learned to live with
One export from your ERP. Another from your CMS. A third from your PIM. Each with its own columns, logic, and naming conventions. On the other side: Amazon, Back Market, Fnac, Cdiscount, each with their own listing requirements.
Most sellers patch it together. Spreadsheets, rigid feed management rules, manual workarounds. They spend hours cleaning data before it ever reaches a marketplace.
And when it gets too hard? They drop products. They skip marketplaces. They leave revenue on the table.
Add the headcount hours spent on catalog creation and endless back-and-forth iterations, and you’ve got one of the most underestimated cost centers in marketplace retail.
Why this hits close to home
Sellermania processes hundreds of millions in GMV for thousands of merchants across 200+ marketplaces. Every merchant comes in with their data structured their own way. Every marketplace wants something different.
For years, catalog import was one of our most common support topics. Merchants stuck before they even launched. Integrations that took days. A friction point invisible from the outside, felt by everyone on the inside.
Sellermania had already built an in-house transformation layer. Powerful, but increasingly complex to maintain as use cases multiplied. It was time to go further.
WeTransform: AI-powered catalog transformation
The Sellermania and WeTransform teams started from a simple question: what if product mapping was no longer a bottleneck?
WeTransform is a rules-based file transformer with AI at its core. Any merchant, technical or not, uploads their existing files. The AI maps the data, fills in the gaps, and outputs clean, marketplace-ready listings for each platform.
The results
Measured across our merchant base:
- 90% reduction in catalog integration time
- 50% fewer support tickets related to product imports
- 1M+ products automatically categorized by AI
Merchants no longer prep their catalog before uploading it. They upload what they have. The AI structures, enriches, and normalizes. Sellermania receives clean data, no back-and-forth.
What this award actually recognizes
The Cas d’Or doesn’t reward technology for its own sake. It rewards a conviction: technical complexity should never be the reason a seller can’t get their products live.
For merchants, the outcome is tangible. Faster time to launch. Listings live sooner, in the right format, on every marketplace. Fewer support tickets, which means teams focused on growth instead of firefighting.
Thank you to our teams, and to the merchants who trusted us with their data.