Storekeeper
Built for multichannel sellers

Multichannel inventory management software that syncs stock and forecasts demand

Selling the same SKU on Shopify, Amazon, eBay and Walmart means one wrong stock number can oversell a listing and put a marketplace account at risk. Multichannel inventory software keeps one accurate count everywhere. Storekeeper is being built to go one step further: forecast demand per SKU and set reorder points across every channel, so you buy to real demand instead of guessing per platform.

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A live preview of Storekeeper's forecasting engine on fictional sample dataon the rows you pasted. The full product connects to your POS and store and runs this continuously.

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The short answer

Multichannel inventory management software tracks and syncs stock across every place you sell, Shopify, Amazon, eBay, Walmart, Etsy and your own POS, so one SKU shows the same available quantity everywhere in real time. The moment a sale, return or restock happens on any channel, the number updates on all of them, which is what prevents overselling. The stronger tools add a deciding layer on top: a per-SKU forecast and reorder points so you know how much to buy and when, across the whole catalog rather than one channel at a time.

Last updated July 2026.

The multichannel problem

Why selling on more channels breaks a manual stock count

Every channel you add multiplies the ways one number can go wrong. These are the pressures the software has to answer.

Pressure Why it hurts a seller What the software should do
Overselling The same units look available on several channels, so you sell stock you do not have and cancel orders Hold one source of truth and push it to every channel in real time
Delayed sync A 4-hour sync window is long enough to oversell a fast mover during a sale Update stock on every sale event, not on a slow timer
Mismatched SKUs The same product listed under different codes breaks the link between channels Map every listing to one internal SKU before syncing
Split demand signal Forecasting one channel at a time misses total demand for the SKU Forecast the combined demand across all channels per SKU
Marketplace penalties Amazon and Walmart punish cancellations and late shipments from stockouts Reorder ahead of demand so listings stay in stock and healthy
What to look for

The functions that matter in multichannel inventory software

Sync keeps you out of trouble. Forecasting is what actually grows the margin.

Real-time stock sync

One available quantity per SKU, pushed to every channel the instant an order, refund or restock lands. Event-driven sync beats a scheduled window because it closes the gap where overselling happens.

Combined demand forecasting

A forecast that pools sales from every channel for each SKU sees true demand, not a partial view. See how it works in our demand forecasting software guide.

Reorder points across channels

A single reorder point per SKU, built from combined demand, lead time and safety stock, so you buy once for all channels. See the reorder point formula.

Dead-stock flags per SKU

A line that is slow on every channel is dead stock tying up cash. Flagging it early lets you clear it on the channel where it will still sell.

Who this fits

Sellers who live on more than one channel

If you copy stock numbers between platforms by hand, this is aimed at you.

Shopify plus marketplaces

Running a Shopify store alongside Amazon or eBay is the classic case: one oversell can suspend a marketplace account, so synced stock is not optional.

Amazon and Walmart sellers

Both marketplaces score you on in-stock rate and cancellations. Forecasting that reorders ahead of demand keeps listings healthy and the account in good standing.

Brands adding wholesale

Selling direct and to trade at once splits demand further. The same reorder logic covers your wholesale side as well as retail.

The honest part

What multichannel inventory software costs today

Storekeeper is in early access. If you need sync running this quarter, these are the credible options, priced from each vendor's own page in July 2026.

Tool Entry price Sync Best for
Veeqo Free (Amazon-owned) Real-time Sellers wanting free sync and shipping across Shopify, Amazon, eBay, Walmart
Sumtracker From about $49/mo Real-time Small brands past their first channel
Zoho Inventory $29/mo Standard Scheduled, every 4 hours Budget sellers inside the Zoho suite; mind the sync delay and order caps
Cin7 Core $349/mo Standard Real-time Higher-volume sellers with wholesale and accounting needs
Storekeeper Early access; planned from $49/mo Planned Sellers whose bottleneck is the reorder decision, not just keeping counts aligned

At the higher-volume end, a dedicated operations hub like Extensiv Order Manager (formerly Skubana) adds deep order-routing automation; see our Extensiv alternatives guide if it feels like too much. If you need software live this quarter, our best inventory management software roundup ranks these by scenario, and the ecommerce inventory management guide covers the wider online-selling picture. If deciding what to reorder across channels is your real bottleneck, run the free scan above and join the list.

Frequently asked

Multichannel inventory management questions, answered

What is multichannel inventory management?
Multichannel inventory management is the practice of tracking and syncing stock across every place you sell, such as Shopify, Amazon, eBay, Walmart and your own store, from one central system. When a unit sells or is returned on any channel, the available quantity updates on all of them, so no channel shows stock you do not actually have. It prevents overselling and gives you one true demand picture per SKU instead of a fragment per platform.
How do I sync inventory across Shopify, Amazon and eBay?
You connect each channel to one inventory system that acts as the single source of truth, then map every listing to a shared internal SKU. From that point the system pushes the same available quantity to Shopify, Amazon and eBay and updates it on every sale, refund or restock. Real-time, event-driven sync is safer than a scheduled window because it closes the gap where a fast mover oversells during a busy period.
How does multichannel software prevent overselling?
Overselling happens when the same units are counted as available on more than one channel at once. Multichannel software fixes this by keeping a single stock number per SKU and lowering availability everywhere the instant a sale lands on any channel. The two requirements are real-time sync and clean SKUs that map one to one across channels, since a mismatched code silently breaks the link and lets stock drift.
What is the best multichannel inventory management software?
It depends on volume and budget. Veeqo offers free real-time sync and is a common starting point; Sumtracker suits small brands adding their second channel; Cin7 Core fits higher-volume sellers who also run wholesale. Zoho Inventory is cheap but syncs on a 4-hour schedule rather than in real time. If your harder problem is deciding how much to buy across channels, weigh a forecast-first tool over one that only keeps counts aligned.
Should I forecast demand per channel or across all channels?
Forecast total demand per SKU across all channels, then decide allocation. A SKU that sells 40 units on Shopify and 60 on Amazon has 100 units of demand to plan and reorder against; forecasting each channel in isolation understates the total and leads to buying too little. Combined forecasting also smooths the noise, because a quiet week on one channel is often offset by a busy week on another.

More ways teams use Storekeeper

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Sync keeps you safe. Forecasting grows the margin.

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