Customer story
“On bol.com and Amazon, availability is ranking. Run out of stock, and the algorithm makes your listing invisible.”
Osira, marketplace jewelry brand
About the brand
Osira is a jewelry and accessories brand that sells entirely on marketplaces: bol.com (Fulfilled by Bol) and Amazon (FBA in the EU and UK). Its catalogue runs to hundreds of small, fast-moving SKUs, fed from its own warehouse and supplier stock, with a big gifting peak in November and December.
The challenge
Where Osira was stuck
A marketplace seller doesn't own its shelf. On bol.com and Amazon, the algorithm decides who gets seen, and it punishes sellers who run out. A stockout doesn't just lose today's sale: the listing loses rank, the buy box goes elsewhere, and that ranking has to be earned back after restocking.
For a catalogue of hundreds of small, fast-moving jewelry SKUs spread across Fulfilled-by-Bol and three Amazon FBA warehouses, keeping every listing continuously stocked by hand is a losing game.
That was the starting point in January: on any given day, roughly 1 in 4 products was out of stock, including more than 1 in 5 of the bestsellers that drive 80% of revenue.
“On marketplaces, out of stock doesn't just cost a sale. It costs your ranking, and you have to earn it back.”
Turning point
Why the old setup ran out of runway
Doing this by hand across a home warehouse, Fulfilled-by-Bol and three Amazon FBA destinations, each with its own transfer time, was never going to hold. Every location can run dry on its own, and on marketplaces every gap is paid for in lost rank.
Osira needed one system that saw the whole network and acted on it every week, not a person refreshing spreadsheets.
What Rewize did
A visibility layer that fit the business
Rewize mapped the full network, suppliers, the home warehouse, Fulfilled-by-Bol, and each Amazon FBA destination with its own transfer time, and put purchasing on a fixed weekly rhythm.
- A weekly ordering cadence: small, frequent purchase orders built from the per-SKU forecast, exploiting the short supplier lead time
- Marketplace-aware replenishment: demand split by channel and geography (bol vs Amazon EU vs Amazon UK), so each location is refilled before it runs dry
- The full catalogue every week, not just the heroes, so slow movers stop slipping through the cracks
- Geo-split transfer recommendations feeding Fulfilled-by-Bol and three FBA warehouses
- A ~10-day main supplier lead time, so a forecast correction reaches the shelf within about two weeks
Results
The numbers that matter
Bestsellers went from leaking to locked in: the products driving 80% of revenue were out of stock 23% of days in January, and about 2% of days from March onward, held for six consecutive months through summer and through the expansion. Estimated revenue lost to those stockouts fell by roughly 95%, essentially eliminated since April.
Across the full catalogue, out-of-stock days halved from 28% to 14%, with the remaining gaps sitting in the long tail (some are deliberate run-outs of discontinued variants). And it happened while the network got more complex, not simpler: Osira expanded from bol.com-only to Amazon FBA in the EU and UK during the same months.
“Short lead times don't guarantee availability. A system that acts on them every week does: it converged in about six weeks and never drifted back.”
Similar stories
More brands that stopped firefighting
“11 suppliers in China, 70-day lead times. You can't afford to get the numbers wrong.”
“Slow movers are easy to forget. Out of stock for months, that adds up to real lost revenue.”
Run a supply chain like Osira?
See what Rewize looks like for your specific setup.