TastyDose went from Shopify-only to live on Amazon in 30 minutes

TastyDose had built something that worked: ten supplement SKUs, a clean Shopify storefront, and a customer base that kept coming back. Expanding onto Amazon was never in question. Germany is the largest e-commerce market in the EU, and for a health brand the search demand was obvious. The question was how to do it without pulling the team off everything else.

Amazon, it turned out, wasn’t a place you could simply copy Shopify listings into. Supplements sit in one of the platform’s most tightly governed categories. Titles follow a prescribed format, bullet points have to be structured a certain way, and backend keywords have to be present in the right language or the products stay invisible. Health claims, the language a supplement brand reaches for instinctively, are restricted, with rules that differ between English and German.

They tried twice. Both times the team sat down and started building listings by hand; both times they got a few days in, made it through roughly five of the ten products, and shelved it. It wasn’t a lack of effort. The work expanded to fill every hour they gave it, and what was meant to be a side project started to look like a hire.

A second worry was waiting even if they pushed through. Running the same stock across two channels meant reconciling inventory across two systems. Supplements carry expiry dates, and a stock-out on Amazon doesn’t just cost a sale: it tanks your organic ranking, which then takes weeks to recover. Doing that by hand on a busy catalogue was a mistake waiting to happen.

The shift in thinking was small but it changed everything. For a year the team had been asking, “How do we find the time to learn Amazon’s supplement rules and write ten compliant German listings?” The better question turned out to be: “What if we didn’t have to?”

That’s the gap Marqetir is built to close. Rather than handing a seller a blank listing form and Amazon’s style guide, it imports the catalogue that already exists and rewrites it natively per marketplace, with the platform’s rules baked in. The category knowledge, the title formats, the health-claim restrictions in German: not something TastyDose had to study, but something the engine already understood.

So instead of blocking out another week, Primož connected the store and watched what happened. He gave it thirty minutes, and has the timeline to prove it didn’t need them all.

It started with a single connection. TastyDose linked their Shopify store and, in one click, all ten products arrived (images, descriptions, variants and prices) without a spreadsheet in sight. The catalogue they’d spent months refining didn’t need rebuilding; it was the starting point.

From there the AI did the part that had defeated two manual attempts. Every listing was rewritten for Amazon DE from scratch: compliant titles in the format Amazon expects, German-language bullet points, and backend keywords aimed at the search terms real German shoppers type. This wasn’t a translation of the Shopify copy. It was a listing built for the marketplace and the language it lives in.

Category mapping, the bit nobody enjoys, happened automatically. The engine knew which supplement categories require which attributes and filled them in, so nothing tripped Amazon’s validation. And underneath it all, inventory sync was wired up from the first minute. Shopify and Amazon now read from the same source of truth, in real time.

The Amazon launch that had sat on the roadmap for a year took an afternoon. The real result wasn’t the speed but what it unlocked. With the hard part removed, TastyDose didn’t stop at Amazon. They’re now live on three marketplaces alongside Shopify: Amazon DE, Kaufland and eBay DE, each managed from the same place and sharing the same inventory.

The Amazon DE channel alone now generates more than €6,800 a month in incremental revenue, money that wasn’t there while the listings sat unbuilt. And because every channel reads from a single real-time view of stock, the inventory problem they’d feared never materialised: no overselling, and no expired product reaching a customer.

The most telling number is the smallest one. Managing three marketplaces now takes the team about two hours a week, against the 60+ hours they’d estimated for a manual Amazon launch alone. The work that scared them off for a year became a maintenance task.