Shopify Inventory Integration for Manufacturers

Sync orders and inventory between Shopify and your production system, so the stock number on your storefront matches what you can actually ship.

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Orders import automatically
Shopify orders flow into Nstock as they come in — no manual re-keying of line items or quantities.
Fulfillment deducts finished goods
When an order ships, the finished goods it contains deduct from inventory automatically, so on-hand counts stay accurate.
Producible quantity, not just zero
Because orders connect to your bills of materials, when finished goods run low you see what you can still produce — not just an empty stock number.
COGS per Shopify order
Each order carries the real FIFO/BOM-based cost of what shipped, feeding accurate COGS instead of a flat estimate.

How It Works

  1. 1

    Connect via OAuth

    Authorize Nstock against your Shopify store in a couple of clicks — no API keys to copy around.

  2. 2

    Orders import automatically

    New Shopify orders appear in Nstock with line items, quantities, and customer details already filled in.

  3. 3

    Fulfillment deducts finished goods

    Shipping an order deducts the finished goods it contains from your inventory in real time.

  4. 4

    Stock levels stay in sync

    Nstock and Shopify reflect the same on-hand quantities, which keeps you from overselling a SKU that's actually out.

Built for Manufacturers, Not Just Retailers

A generic Shopify inventory app tracks a stock number. Nstock connects that number to what production can actually do: every order ties back to the bill of materials behind the finished good, so when stock runs low you see the producible quantity — how many more units your materials on hand can make — instead of a flat zero. Costs follow the same path: every Shopify order carries the real FIFO/BOM-based cost of what shipped, so COGS reflects reality instead of a static estimate. This is exactly the gap we built for Shopify DTC brands that manufacture their own products. And once those orders ship, if ShipStation handles your labels, Nstock can pull tracking and shipped status back from ShipStation onto the matching orders automatically.

Full Shopify sync is available on the Pro plan and above, or as an add-on on other tiers — see pricing for details.

Frequently Asked Questions

Does this integration prevent overselling on Shopify?

Yes. Because fulfillment deducts finished goods from Nstock inventory in real time and that stock level syncs back to Shopify, the storefront reflects what you can actually ship, not a stale count.

Can I connect multiple Shopify stores?

Yes — the Business plan supports connecting multiple Shopify stores to a single Nstock account, useful for brands running separate storefronts by region or label.

What about sales channels other than Shopify?

Shopify is the integration available today. Additional sales channels are on the roadmap — see the Integrations page for what's live.

Related Resources

Guide: Shopify Inventory Integration SetupIndustry: Shopify DTC BrandsFeature: Production TrackingPricing