Amazon and Shopify Integration: Sync Inventory, Orders & Listings In OneCart

OneCart creates a real-time connection between your stores that works 24/7:

• When an item sells on Amazon: Stock is instantly reduced on Shopify
• When you update stock in OneCart: Both platforms are updated simultaneously
• When you receive new inventory: Add it once in OneCart, and it updates everywhere

This happens automatically without any manual work, preventing overselling and inventory discrepancies that cost merchants thousands in lost sales and customer goodwill.

Our customers report saving 75-90% of the time previously spent on order management:

• Before OneCart: Login to each platform separately, download orders, manually combine data, print packing slips from different systems
• With OneCart: See all orders in one dashboard, sort/filter across all platforms, print consolidated packing slips, and process fulfillment in batches

For a merchant processing 50 orders daily across multiple platforms, this typically saves 2-3 hours every day, time you can invest in growing your business instead.

Most merchants complete the basic setup in under 10 minutes:

1. Create your OneCart account (2 minutes)
2. Connect your Amazon store through our guided authentication process (3 minutes)
3. Connect your Shopify store following the same steps (3 minutes)
4. Configure your sync settings (2 minutes)

Your inventory will begin syncing immediately. Our onboarding team is available to help if you need assistance, and we offer premium onboarding services for larger merchants with complex requirements.

OneCart is designed for complex catalogs with variations, bundles, and kits:

• Product variations: Size, color, material and other attributes are properly mapped between platforms using SKUs as the unique identifier
• Parent-child relationships: We maintain the proper hierarchy structure when syncing between platforms
• Bundle products: Component inventory is tracked accurately when part of bundles or kits

This ensures that even sophisticated product catalogs with thousands of SKUs and variations maintain perfect accuracy across all your sales channels.

OneCart scales to support businesses of all sizes:

• Products: We support catalogs with 100,000+ SKUs without performance issues
• Orders: Our system supports merchants with 10,000+ orders each per day across multiple channels, and scales automatically for higher traffic days like 11.11 and other special occasions.
• Growth: As your business expands, OneCart automatically scales with you without requiring expensive upgrades

We have clients ranging from small merchants with 10 orders/day to large enterprises processing thousands of orders daily across multiple channels. The system is designed to grow with your business.