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Amazon Seller Central (Fulfilled-by-Amazon) integration (via Extensiv)

Connect to the giant e-commerce platform and one of the largest retailers

Michael De Giovanni avatar
Written by Michael De Giovanni
Updated today

Connect Katana with Amazon FBA via Extensiv Integration Manager


The Amazon FBA integration connects Katana with Amazon Seller Central using Extensiv Integration Manager, automating key workflows.

With this setup, you can:

  • Import sales orders from Amazon → Katana.

  • Import order-related product data from Amazon → Katana (if no match is found).

This guide is for Fulfilled-by-Amazon (FBA) orders. If you use a seller-fulfilled workflow, follow this guide


How it works

Extensiv is an order management integration platform that connects Amazon Seller Central with Katana. It allows you to:

  • Download FBA orders from Amazon into Katana.

  • Sync products (if no matches exist).

  • Manage inventory between your Katana warehouse(s) and FBA stock.

Note: Extensiv does not update the delivery status in Katana. You must manually mark orders as Delivered in Katana once shipped.


Setting Up the Integration

1. Create an Amazon Cart Connection in Extensiv

  1. Log in to Extensiv Integration Manager.

  2. Go to Carts → +New Setup.

    Screenshot of the + New Setup button for carts in Extensiv

  3. Select Amazon from the list and choose your Amazon Marketplace.

    • Each Amazon Marketplace requires a separate Cart connection.


2. Enter API Information

Fill in the required Amazon API credentials:

  • Seller ID → Public ID for your Amazon storefront.

  • MWS Auth Token → Private API key for connecting Amazon MWS apps.

Follow Amazon Zone instructions for details.


3. Adjust Sync Settings

Screenshot of Services setup in Extensiv
  • Order Download → Set how frequently Amazon orders are imported into Katana.

    • Batch importing is not supported (multiple Amazon orders cannot be merged into one Katana order).

  • Shipment Upload → Defines how fulfillment updates sync between Katana and Amazon.

  • Inventory Upload → Choose how often Katana stock levels are pushed to Amazon.


4. Configure Amazon cart setup fields

Screenshot of Amazon_CA Cart Setup configuration in Extensiv for Amazon

Key options to review:

  • Item SKU Field → Defines which field Extensiv uses for SKUs.

  • Order Type → Select Fulfilled-by-Amazon.

    • To import both FBA and seller-fulfilled orders, create two separate Cart connections.

  • Translate Item’s Code → Extensiv can map SKUs to aliases before sending them to Katana.

  • SKU vs. ASIN

    • Extensiv can load either the Amazon ASIN or SKU into Katana’s variant code.

    • Your warehouse must provide the Amazon SKU, since Amazon only supports inventory syncing via SKU.

Screenshot of Extensiv General Order Options and General Inventory Options

5. Configure Katana WMS information

Screenshot of Extensiv's Katana WMS Information settings
  • Warehouse → Choose the Katana location where Amazon orders will be imported.

  • FBA Stock Location (Optional)

    • Create a separate Katana location to represent FBA stock.

    • Transfer inventory between your main warehouse and the FBA location to keep stock levels aligned.

  • Auto Create Missing Katana Products

    • Yes → Extensiv creates new products in Katana when no match is found.

    • Note: Products are added as new products, not variants.

  • Overwrite Customer Info

    • Set FBA orders to be grouped under one customer in Katana.

    • Amazon does not provide complete customer names or addresses, so orders must link to a single customer record.


6. Test & save

  1. Click Test at the bottom of the setup screen.

  2. If successful, click OK to save your changes.


Integration is ready!

  • Amazon FBA orders and related product data will now import into Katana.

  • Inventory adjustments between your Katana warehouse(s) and FBA stock can be managed using multiple locations.

  • Orders must be manually updated to Delivered in Katana once shipped.


Notes & limitations

  • Extensiv does not sync delivery status. Orders must be marked as Delivered manually in Katana.

  • Each Amazon Marketplace requires its own Cart connection.

  • Extensiv cannot create product variants—new products are added as standalone items.

  • Inventory syncing is only possible via SKU, not ASIN.

Need help? Contact the Extensiv Support Portal


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