One inventory. All your Amazon channels, always in sync.
Epinium Inventory Sync keeps your stock levels accurate across every Amazon marketplace and sales channel in real time — eliminating overselling, stockouts, and manual reconciliation.
Free to start · No credit card · Connected in minutes
What our clients say
Inventory that stays accurate everywhere
Epinium reads your FBA and FBM inventory in real time and ensures every marketplace always shows the correct, available stock quantity.
From connected account to always-accurate stock
Epinium connects to your Amazon Seller Central and warehouse feeds, reads inventory in real time, and keeps every channel in sync — without manual exports or reconciliation.
All your inventory, in one place
- Amazon API integrationEpinium reads your FBA inventory directly from Amazon's API — no file exports, no manual uploads.
- Third-party warehouse supportConnect external warehouses and 3PL providers to include all stock in the unified inventory view.
- Marketplace mappingAutomatically map ASINs to their equivalent listings across EU and US marketplaces for accurate localised stock levels.
Know your stock position at all times
- Real-time stock dashboardSee current stock levels, reserved units, and inbound FBA shipments for every ASIN across every marketplace.
- Low stock alertsConfigure alert thresholds and receive notifications before stockouts occur — with enough lead time to restock.
- Velocity trackingMonitor daily sell-through rates by ASIN and marketplace to predict when you'll need to reorder.
Never run out — replenish before it's too late
- Reorder point automationSet reorder points by ASIN and trigger replenishment workflows automatically when stock crosses the threshold.
- Lead time-aware alertsFactor in your supplier lead times so alerts fire with enough advance notice to avoid stockouts.
- Seasonal demand adjustmentAdjust reorder thresholds automatically for peak seasons and promotional periods based on historical velocity.
100 marketing playbooks, inside the Claude or ChatGPT you already use.
Twenty-two disciplines, backed by the experience of 500 brands. Not a data pipe — a marketing department. No card required.
Start free →With a vast catalog and little time, we trusted Epinium to optimize our listings. This led to increased organic sales and improved advertising performance through AI, allowing us to focus on growing our business.
Alberto Feria
CEO, Alfa Holding
With Epinium, we are able to save a lot of time editing our clients' listings thanks to its bulk editor and Artificial Intelligence. We are able to take care of their strategies.
Miriam Larrosa
CEO, Roicos
Our expectations were certainly exceeded. Everything is just so well thought out, and snappy. Their support team is excellent too!
Neus Dominguez
Marketplace Manager, Labbox
We use Epinium every day to monitor the status of all our ASINs across all marketplaces and improve our SEO very productively. An indispensable tool that lets us manage a much larger catalog than we imagined. Worth every penny.
Oriol Penya
Organic Beauty Brands
It is impossible to calculate the hours Epinium has saved me managing customer catalogs. I've modified catalogs of up to 3,500 SKUs and run SEO audits comfortably from the same panel.
Jordi Ordóñez
Amazon Consultant
Epinium's ability to analyze and adjust ads in real-time based on performance has enabled us to maximize ROI and achieve our business goals more effectively. Without a doubt, I recommend Epinium to any seller.
Edgar Alvarez
Head eCommerce, BANDAI Entertainment Europe
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ExploreFrequently asked questions
Does Inventory Sync work with multi-channel selling?
Yes. Epinium syncs inventory across Amazon FBA, FBM, and third-party channels — keeping stock accurate everywhere you sell.
How quickly does inventory update after a sale?
Epinium reads Amazon's inventory API on a near-real-time basis — typically within minutes of a sale or stock change.
Can I set different stock thresholds per marketplace?
Yes. Alert thresholds and reorder points can be configured per ASIN and per marketplace independently.