Inventory Sync

ShipStation's Inventory Sync feature streamlines ecommerce operations by eliminating the need for manual updates, ensuring that inventory levels are always accurate and up-to-date. With Inventory Sync, you can easily manage your inventory across multiple platforms, save time, and reduce the risk of errors.

ShipStation supports synchronizing inventory across a variety of stores including Shopify, Amazon, and Etsy with more integrations coming soon. To have this feature enabled for your account, please fill out our Inventory Sync form.

When syncing available inventory counts, you can select which sources to sync inventory from and determine which target stores should receive updates. 

Sources are where you want to pull inventory stock level into ShipStation. Sources can be ShipStation Inventory or ShipStation 3PL.

Targets are where you want stock levels to be updated from the source. Targets can be Shopify, Amazon, or Etsy stores with more stores coming soon.

You can select as many Sources and Targets as you'd like.

Benefits of Inventory Sync

Accurate, up-to-date inventory is essential to keeping your business running smoothly. Inventory Sync can help you:

  • Save time: Remove the need to manually upload inventory CSVs and inventory levels by letting ShipStation automatically sync your inventory levels from your selected sources.

  • Reduced risk of errors: Reduce the chance of errors by eliminating the need to manually update inventory levels on each sales channel.

  • Stop underselling and overselling: Never miss out on a sale because a product is incorrectly listed as “out of stock” at a store or marketplace. Underselling directly leads to missed revenue in the short term and lost customers. Conversely, avoid costly mistakes from canceled orders by incorrectly listing an item as being "in stock". 

  • Stay in good standing with marketplaces: Inventory Sync ensures your inventory is always up-to-date and accurate across all your sales channels. This means you won’t upset customers with unfulfillable canceled orders and won’t risk being suspended by marketplaces like Amazon, eBay, and Walmart.

Requirements for Inventory Sync

  • Inventory Tracking enabled. ShipStation must be aware of your initial inventory levels and whenever a restock takes place.

    Update ShipStation Stock Counts Before Enabling

    Be sure to have your stock counts up to date in ShipStation prior to setting up Inventory Sync

  • Warehouse linked to a Ship From Location.

  • Products must have matching SKUs for Inventory Sync to update correctly. Stock counts will only sync to products that have an exact SKU match in your Targets. At this time Product Aliases and Bundles are not supported by Inventory sync.

  • A supported selling channel connected to ShipStation. Inventory Sync is currently supported for:

    More stores coming soon!

Enable Inventory Sync

Inventory sync will be available in the add-on marketplace soon. Once enabled, you can set up your inventory sync configuration and prepare your account by making sure your product counts are accurate.

Next, you can proceed with enabling Inventory Sync:

  1. Go to Settings > Inventory Management > Inventory Sync.

  2. Click the Setup Inventory Sync button.

  3. Select the Sources and Targets you would like to update via Inventory Sync. You may select as many as you'd like.


    Product SKU Must Be in ShipStation and Store

    For syncing to work, the same SKU must be used within ShipStation and each of your stores.

    Product Aliases and Product Bundles are not currently supported, however that functionality is coming soon!

  4. Click Save Configuration.

  5. Check the box I understand and agree to these terms, then click Save Configuration.


Inventory Sync is now enabled. While it can take up to an hour to complete the sync, you may continue working in ShipStation.

Troubleshooting: Reconfigure Your Store

If the stores in your Inventory Sync configuration are not syncing, one possible solution is to reconfigure your store connection.