Running Amazon and Shopify as separate silos is one of the most common operational mistakes in e-commerce. Without an integration, you’re manually updating inventory in two places, reconciling orders in two dashboards, and risking overselling whenever a product sells faster than you can update your stock levels. An Amazon-Shopify integration automates this and treats your total inventory as one pool shared across channels.
In our experience, brands that integrate Amazon and Shopify properly see immediate operational benefits: fewer oversell incidents, less admin time spent on manual sync, and cleaner reporting across channels. This guide walks through your integration options, what each syncs, and the operational decisions you need to make before setting one up.
What an Amazon-Shopify Integration Syncs
A well-built integration typically handles:
- Inventory: Central stock count pushed to both Shopify and Amazon in real time. When a unit sells on Amazon, Shopify inventory decreases automatically (and vice versa).
- Orders: Amazon orders imported into your fulfillment system (or 3PL) for picking and shipping — or routed to Amazon FBA automatically.
- Listings: Product data (title, description, images, pricing) managed in one place and pushed to Amazon’s catalog, reducing listing management overhead.
- Pricing: Some integrations allow rule-based repricing on Amazon based on Shopify prices.
Integration Options
Option 1: Shopify’s Native Amazon Sales Channel
Shopify has a built-in Amazon sales channel that allows you to link existing Amazon listings to Shopify products and sync inventory between the two platforms. It’s available on all Shopify plans.
What it does: Inventory sync between Shopify and Amazon, order import into Shopify, and basic listing creation for new products.
Limitations: It doesn’t handle complex multi-SKU catalog management well, doesn’t support Fulfillment by Merchant (FBM) order routing to 3PLs natively, and can be slow to sync inventory updates at high volume.
Best for: Small catalogs, early-stage multichannel testing, brands where simplicity matters more than features.
Option 2: Sellbrite
Sellbrite is a multichannel listing and inventory management tool that integrates Shopify with Amazon, eBay, Etsy, Walmart, and more. It centralizes inventory management and listing workflows across all connected channels.
- Best for: Brands selling on 3+ channels who need unified listing management
- Pricing: Starts around $29/month; scales based on order volume
- Strengths: Clean UI, strong multichannel support, good inventory sync reliability
Option 3: Linnworks
Linnworks is a more enterprise-grade multichannel operations platform — covering inventory, order management, fulfillment routing, and warehouse management across Shopify, Amazon, eBay, and dozens of other integrations.
- Best for: Larger brands with complex multichannel operations, multiple warehouses, or significant order volume
- Pricing: Custom pricing; typically $400+/month
- Strengths: Very deep functionality, handles complex fulfillment routing, strong Amazon FBM support
Option 4: Amazon MCF (Multi-Channel Fulfillment) via Shopify
If you store inventory at Amazon FBA, you can use Amazon’s Multi-Channel Fulfillment (MCF) to fulfill Shopify orders through your FBA inventory. The Amazon Buy with Prime app for Shopify integrates MCF with your Shopify store — allowing customers to use Amazon Prime shipping and Amazon’s fulfillment network for Shopify orders.
- Best for: Brands with majority inventory at Amazon FBA who want to consolidate to one fulfillment operation
- Consideration: MCF fees are typically higher than standard FBA per-unit costs; plain brown boxes for Shopify orders (Amazon doesn’t allow your branded packaging on MCF shipments)
FBA vs. FBM: Fulfillment Model Decisions
Fulfillment by Amazon (FBA)
Amazon stores, picks, packs, and ships your products. You send inventory to Amazon’s fulfillment centers; they handle everything from there. Access to Prime badge, Amazon’s customer service, and returns processing.
- Pros: Prime eligibility (major conversion driver), hands-off fulfillment, Amazon handles customer service for FBA orders
- Cons: Higher fees, loss of branding control, inventory stranded at Amazon if it doesn’t sell, nexus implications (physical presence in multiple states)
Fulfillment by Merchant (FBM)
You fulfill Amazon orders yourself (or through your 3PL). Amazon routes the order to you; you ship it directly to the customer.
- Pros: Lower fees, brand control on packaging, unified inventory pool between Amazon and Shopify
- Cons: No Prime badge by default (can qualify for Seller-Fulfilled Prime with strict performance requirements), more operational complexity
Key Integration Decisions to Make Before You Start
- Which channel is the master for pricing? Shopify prices driving Amazon, or set independently?
- How do you handle inventory buffers? Do you want Amazon to always show a quantity 10% below your actual available stock as a safety buffer against sync delays?
- How are Amazon-specific fees tracked? FBA fees, referral fees, and storage fees need to be in your P&L somewhere — don’t just net them out against revenue
- What’s your returns process for Amazon FBM? Amazon customers expect Amazon-style returns. Define your process before it’s a customer service fire.
Frequently Asked Questions
How do I connect Amazon and Shopify?
Use Shopify’s native Amazon sales channel for basic sync, or a third-party platform like Sellbrite or Linnworks for more robust inventory control and listing management. The native channel is fine for smaller catalogs; third-party platforms are better for high-volume or complex multichannel operations.
Does Shopify sync inventory with Amazon automatically?
Yes — with an integration in place. When an item sells on Amazon, your Shopify inventory decreases, and vice versa. Real-time sync is better for fast-moving SKUs to prevent oversells.
Should I use FBA or FBM if I also have a Shopify store?
FBA gives you Prime badge but fragments inventory. FBM lets you fulfill from one pool for both channels, simplifying inventory management. Many brands use FBA for their best-selling Amazon SKUs and FBM for the rest.
What is Amazon MCF and how does it work with Shopify?
MCF lets you use FBA inventory to fulfill Shopify orders. The Buy with Prime app brings this to Shopify. Note: MCF ships in Amazon-branded or plain packaging — not your branded boxes — which may not work for all brands.
Need help setting up your Amazon-Shopify integration and multichannel operations? OpsStack Consulting helps e-commerce brands build the systems to sell on multiple platforms without the manual chaos. Book a free discovery call.
