Syncstocky for AmazonLive todayProtect your Amazon account health with real-time stock sync
An oversell on Amazon isn't just a refund — cancellations hurt your Order Defect Rate and can put your whole account at risk. Syncstocky keeps your Amazon quantities aligned with every other channel, automatically.
14-day free trial · No credit card required
The problem
On Amazon, an oversell costs more than the order
Cancellations damage your metrics
Amazon tracks your pre-fulfilment cancel rate. Sell an item on Shopify without updating Amazon fast enough, and the resulting cancellation counts against the account you spent years building.
SP-API is a project, not a feature
Feeds, throttling, token rotation, marketplace IDs — wiring Amazon inventory updates yourself is weeks of work that breaks the day Amazon changes something.
FBM stock drifts from your store
If you fulfil from the same shelf that powers your website, the two numbers drift apart a little more with every sale — until one of them is wrong at the worst moment.
The solution
How Syncstocky keeps Amazon in sync
The same real-time engine across every channel — Amazon included.
SP-API integration, managed for you
Connect your Seller Central account with Amazon's official OAuth flow. We handle feeds, rate limits, and retries — you never touch the SP-API.
ASIN & SKU mapping
Amazon seller SKUs rarely match your Shopify SKUs. Map them once in the SKU Mapper — including multi-packs sold as single listings.
Low-stock alerts before it hurts
Set thresholds and get warned before a fast-moving listing hits zero — so you can restock or pause the listing before a defect happens.
An audit trail for every unit
When Amazon shows a quantity you don't expect, the Sync Log shows you the exact chain of events that produced it.
How it works
Three steps to synced stock
Connect Amazon
Connect your Amazon Seller account through the official Login with Amazon flow and pick your marketplace. We import your FBM catalog automatically.
Map your SKUs
Auto-match identical SKUs across channels and link the rest by hand — every product ends up with one master SKU.
Sell with confidence
Every order, restock, or adjustment on any channel updates all the others within seconds — automatically.
Popular pairings
Sync Amazon with everything else
One inventory pool, however many places you sell.
FAQ
Amazon sync, answered
Yes. Amazon SP-API connect and catalog import are live, with inventory updates flowing both ways between Amazon and your other connected channels.
Syncstocky is built for merchant-fulfilled (FBM) inventory, where your own warehouse feeds multiple channels. FBA stock is managed by Amazon and doesn't need cross-channel sync.
No. We only submit inventory quantity updates. Your titles, prices, and listing content are never modified.
We pick up new Amazon orders and push the updated quantity to Shopify and your other channels within seconds, so a hot seller on Amazon can't oversell on your website.
Plans start at $29/month for up to 2,000 orders per year across all channels, with a 14-day free trial at launch.
It's quantity-only, by design. Syncstocky is real-time Amazon inventory sync — stock levels, not product content. Titles, images, and listing details stay exactly as you set them in Seller Central.
The 14-day trial is free with no card required; plans start at $29/month after that — there's no free-forever tier. Each Amazon Seller Central account connects as its own store in Syncstocky, so if you run multiple accounts, connect each one and share one inventory pool across all of them, the same as running multiple Shopify stores.
It's focused specifically on the sync layer, not full inventory management. Syncstocky doesn't do purchase orders, supplier management, or warehouse operations — it keeps the stock number your other systems already track correct across Amazon and every other channel you sell on.
Ready to stop overselling on Amazon?
Connect Amazon and Syncstocky keeps your stock aligned across every channel you sell on, in real time.
14-day free trial · No credit card required.
Amazon is a trademark of its respective owner. Syncstocky is an independent service and is not affiliated with, endorsed by, or certified by Amazon.