Zoho Inventory and Amazon FBA Integration: Sync Stock, Automate Inbound Shipments, and Reconcile Settlements

Amazon FBA sellers face a recurring inventory management problem: their stock lives in multiple Amazon fulfillment centers across the country, but their purchasing, receiving, and accounting workflows happen in their business management system. Without integration, stock levels in FBA and your own system fall out of sync, inbound shipments are tracked in spreadsheets, and Amazon’s bi-weekly settlement payments are reconciled manually against invoices. Connecting Zoho Inventory to Amazon FBA creates a single operational view: FBA stock levels, inbound shipment status, sales orders, and settlement data all flow into Zoho Inventory and Zoho Books, eliminating the manual work that grows unsustainable as your FBA business scales.

How Zoho Inventory Connects to Amazon FBA

Zoho Inventory connects to Amazon Seller Central using the Amazon Selling Partner API (SP-API). The integration is configured in Zoho Inventory’s marketplace settings:

1. In Zoho Inventory, go to Settings > Integrations > Marketplaces > Amazon.
2. Click Connect to Amazon and authenticate with your Seller Central credentials. Amazon will ask you to authorize Zoho Inventory to access your seller data.
3. Select your marketplace region (US, UK, EU, etc.) and the fulfillment channels you want to integrate (FBA, FBM, or both).
4. Zoho Inventory fetches your existing product listings and matches them to Zoho Inventory items by SKU. Review and confirm the matching.
5. Set the sync frequency for orders, inventory, and listing data.

After connecting, Amazon FBA orders appear automatically in Zoho Inventory as sales orders, and FBA inventory quantities are visible on each item’s stock page alongside your own warehouse quantities.

Managing FBA Inventory from Zoho Inventory

Once connected, Zoho Inventory shows FBA stock as a separate column on item records:

• FBA Available: Units available for sale in Amazon FBA warehouses
• FBA Reserved: Units reserved for pending FBA orders or between fulfillment centers
• FBA Inbound: Units in transit to Amazon FBA (from inbound shipments you have sent)
• FBA Unfulfillable: Units that Amazon has flagged as unsellable (damaged, expired, etc.)

This gives you a complete inventory picture across your own stock and FBA stock in a single view, without switching between Zoho Inventory and Seller Central.

Creating FBA Inbound Shipments from Zoho Inventory

Replenishing FBA inventory involves creating inbound shipment plans in Amazon Seller Central — a process that becomes repetitive for high-SKU businesses. Zoho Inventory’s Amazon integration streamlines this:

1. In Zoho Inventory, identify items where FBA stock falls below your reorder point. Use Zoho Inventory’s reorder reports filtered by FBA channel.
2. Create a Transfer Order in Zoho Inventory from your warehouse to the Amazon FBA location.
3. The transfer order pushes an inbound shipment plan request to Amazon via SP-API.
4. Amazon assigns fulfillment center destinations and generates shipment IDs. These flow back to Zoho Inventory.
5. Print the Amazon shipping labels and carton content labels from within Zoho Inventory.
6. Once the shipment is confirmed received by Amazon, Zoho Inventory updates the FBA Available quantity automatically.

Handling Multi-Channel Inventory Across FBA and Other Sales Channels

Many FBA sellers also sell through their own website (Shopify, WooCommerce) or other marketplaces (eBay, Etsy). Managing shared inventory across channels without overselling requires careful stock allocation:

FBA inventory is not shared with other channels in Zoho Inventory — it is allocated exclusively to Amazon. Your own warehouse stock serves all other channels. This separation prevents overselling by ensuring FBA-reserved stock is never offered on other storefronts.

Reconciling Amazon Settlement Reports in Zoho Books

Amazon pays FBA sellers every two weeks via settlement reports. Each report includes gross sales, FBA storage and fulfillment fees, referral fees, advertising costs, refunds, and adjustments. Recording this accurately in Zoho Books requires mapping each line item type to the correct account.

Standard account mapping for Amazon settlements

• Product sales: Sales / Revenue account
• FBA fulfillment fees: Cost of Goods Sold or Fulfillment Expense account
• Referral fees: Marketplace Fees expense account
• FBA storage fees: Storage / Warehouse Expense account
• Advertising costs: Marketing / Advertising Expense account
• Refunds: Revenue reversal or Refunds account
• Net settlement amount: Deposited to your Amazon / bank account in Zoho Books

For low-to-medium settlement volumes, import the CSV from Amazon Seller Central into Zoho Books as a manual journal entry or bank import. For high volumes, tools like A2X or Synder automate the categorization by pulling settlement data via API and pushing mapped journal entries to Zoho Books.

Tracking FBA Returns and Unfulfillable Inventory

Amazon returns items to FBA inventory when customers initiate returns. Some returned items are inspected by Amazon and relisted as FBA Available; others are flagged as Unfulfillable (damaged or unsellable). Zoho Inventory reflects both states:

• Monitor the FBA Unfulfillable quantity in Zoho Inventory. When it grows, initiate a removal order in Amazon Seller Central to return the items to your warehouse or dispose of them.
• When items are removed from FBA and received back in your warehouse, update Zoho Inventory accordingly to reflect the stock movement.
• Record the write-down of unfulfillable inventory in Zoho Books as an inventory adjustment to keep your books accurate.

For related Zoho integrations, read our guide on reconciling Wise payments in Zoho Books for international settlement handling. Teams with Shopify alongside Amazon FBA should also read our guide on ERP and Shopify integration for multi-channel inventory management.

For a full overview of all available options, explore our complete guide to Zoho integrations.