Introduction

Searching for the best app to connect shopify to amazon is the first step to selling on Amazon without managing two separate inventories. The right integration app prevents overselling, saves hours on manual listing updates, and opens your Shopify catalog to Amazon buyers with minimal friction.

This article covers how Shopify-Amazon integrations work, the top apps to consider with pricing and pro/cons, step-by-step implementation timelines, and advanced settings to scale. You will get actionable checklists for selecting an app, common migration mistakes to avoid, and a timeline for going live based on catalog size. If you want to add Amazon as a sales channel in 1 week or scale to 50,000 SKUs over 6 months, this guide gives concrete next steps and numbers you can use to plan resources and budgets.

How Shopify-Amazon Integrations Work:

what, why, and how

What these integrations do and why they matter

Shopify-Amazon integration apps connect your Shopify store backend to Amazon seller accounts so product data, inventory counts, order flows, and pricing can be synchronized.

Push Shopify listings to Amazon or map Shopify products to existing Amazon Standard Identification Number (ASIN) pages.
Sync inventory levels (Stock Keeping Unit, SKU) to prevent oversells.
Route Amazon orders back into Shopify for centralized fulfillment, reporting, and customer records.
Reprice or manage offers automatically to stay competitive on Amazon Buy Box.

Why use an app instead of manual processes

Manual listing and order management scale poorly. For example, a seller with 200 SKUs and 50 daily Amazon orders will spend 10-20 hours weekly on manual updates. An integration reduces that to routine checks and exception handling, saving labor and reducing order errors by 70-95% depending on process quality.

How integrations technically work

Most apps use Amazon Marketplace Web Service (MWS) or the newer Selling Partner API (SP-API) to exchange data.

Authentication: link your Amazon seller account via App authorization.
Mapping: match Shopify SKUs to Amazon ASINs or create new listings.
Synchronization: send inventory, price, and product attribute updates on a schedule or in real time.
Order flow: import Amazon orders into Shopify and mark orders shipped back to Amazon if using Fulfillment by Merchant (FBM) or Fulfillment by Amazon (FBA).

Performance variables to evaluate

Sync latency: real-time versus 5-15 minute or hourly updates.
SKU capacity: apps vary from 500 SKUs to unlimited enterprise catalogs.
Repricing support: built-in repricer or third-party integration.
Multi-account support: ability to connect multiple Amazon marketplaces (US, UK, CA, EU) and multiple seller accounts.

Example: small seller timeline

Catalog size: 100 SKUs with unique ASINs.
Setup: 1-3 days to install app, authorize Amazon, and map SKUs.
Go-live: 3-7 days including testing and adjusting price rules.

Example: larger seller timeline

Catalog size: 10,000 SKUs with mixed ASIN matches and new listings.
Setup: 2-6 weeks for mapping, taxonomy corrections, and testing.
Ongoing tuning: 1-3 months for repricing rules and feed optimization.

Best App to Connect Shopify to Amazon Top Picks and How To

choose

Quick summary recommendations

Shopify Amazon sales channel (Shopify native) - Best for simple, smaller catalogs and tight Shopify integration.
Codisto LINQ - Best for real-time listing management and scalable catalogs.
Sellbrite (by GoDaddy) - Best for multi-marketplace ease and mid-size merchants.
ChannelAdvisor - Best for enterprise, high-volume sellers with complex routing.
CedCommerce Amazon Integration - Best for budget-conscious sellers needing Amazon listing features.

How to decide: checklist and priorities

Prioritize features based on your business:

SKU count and complexity: under 500 SKUs, native Shopify or CedCommerce is often fine. Over 5,000 SKUs, choose Codisto, ChannelAdvisor, or Linnworks.
Listing strategy: if you need to create thousands of new ASINs, prefer tools with bulk listing and template support.
Sync speed: if you run flash sales or high-turn inventory, prioritize real-time or sub-minute sync.
Pricing control: if Buy Box competition matters, ensure repricer support or a solid third-party repricer integration.
Marketplace reach: ensure multi-marketplace (US, UK, CA, EU, AU) support if you plan international growth.
Budget: monthly app fees plus percent-of-sales or per-SKU charges can add up. Build a 3-6 month cost estimate.

Top picks in detail with pros and cons

Shopify Amazon sales channel (Shopify native)

Pros: native Shopify order import, simple setup, no separate dashboard, deep Shopify fulfillment compatibility.
Cons: limited advanced listing controls, not ideal for large catalogs or complex repricing rules.

Codisto LINQ

Pros: real-time sync, direct in-Shopify SKU to ASIN mapping, bulk listing templates, multi-marketplace support.
Cons: pricing can be per SKU or tiered, learning curve for advanced rules.

Sellbrite (GoDaddy)

Pros: easy multi-channel listing, bundle and kit support, centralized inventory for several marketplaces.
Cons: not as strong on real-time sync; best for mid-volume sellers.

ChannelAdvisor

Pros: enterprise features, custom routing, advanced repricing and feed management.
Cons: expensive, implementation timelines are longer and often require onboarding fees.

CedCommerce Amazon Integration

Pros: budget-friendly, covers most common seller needs, decent bulk tools.
Cons: less real-time precision and fewer enterprise features.

Representative pricing (as of mid-2024, verify vendor sites)

Shopify Amazon sales channel: free to connect, standard Shopify and Amazon fees apply.
Codisto LINQ: plans commonly start near $29-49/month and scale to $199+; enterprise pricing available.
Sellbrite: plans often start at $29/month with higher tiers for more orders or channels.
ChannelAdvisor: custom pricing, commonly $1,000+/month for enterprise setups.
CedCommerce: one-time app fees or monthly subscriptions from $19/month; custom plans for higher volume.

Example selection scenarios

New Shopify seller with 50 SKUs: Shopify native channel or CedCommerce to start; budget $0-50/month, go-live in 1-3 days.
Growing seller with 2,000 SKUs and daily sync needs: Codisto LINQ; budget $100-300/month and 1-3 week implementation.
Enterprise brand with global catalog: ChannelAdvisor or custom integration; budget $1,000+/month and 1-3 months implementation with onboarding.

Implementation Plan and Timeline:

step-by-step to go live

Week 0: Prep and prerequisites (1-3 days)

Create or verify your Amazon Seller Central account with the right registration (Individual vs Professional). For most merchants selling >40 units per month choose Professional.
Ensure UPCs or GTINs are available for products that require them, or request GTIN exemptions where relevant.
Prepare product data: titles, bullet points, Amazon-compliant images (white background primary), backend search terms.

Week 1: Install and connect (2-7 days)

Install chosen app from Shopify App Store and authorize Amazon Seller Central (SP-API or MWS).
Configure basic settings: default warehouse, fulfillment method (Fulfillment by Merchant, FBM, or Fulfillment by Amazon, FBA), and marketplaces to connect.
Map a pilot batch of 10-50 SKUs to existing ASINs or create sample listings.

Week 2: Pilot and QA (3-7 days)

Run a pilot of 20-100 SKUs through the app. Check:
Inventory sync accuracy after simulated orders and stock changes.
Price updates and repricer behavior.
Order routing: Amazon orders import into Shopify with correct customer and shipping data.
Fix mapping issues, attribute mismatches, and image errors.

Weeks 3-4: Scale catalog and automate rules

Import remaining SKUs in batches (500-2,000 per week depending on app and mapping work).
Create automation rules: price rules, inventory thresholds, order routing by SKU or marketplace.
Set notification triggers for exceptions (listing errors, suppressed listings, buy box loss).

Month 2-3: Optimization and monitoring

Monitor daily sync logs, suppressed listing reports, and Amazon performance metrics (Order Defect Rate, Late Shipment Rate).
Tune repricing strategy and placement rules for Buy Box targets.
If using FBA, reconcile inbound shipments and map FBA SKUs.

Key implementation tips with numbers

Batch size: upload 100-500 SKUs per batch to reduce risk of mass errors.
Buffer stock: set safety stock of 5-10 units per SKU temporarily to prevent oversells during initial sync.
Testing orders: place 3-5 test orders per marketplace for each fulfillment method (FBM, FBA) to confirm flows.

Example timeline for 5,000 SKUs

Prep: 2 weeks for data cleansing and GTIN handling.
Mapping and initial automation: 3-6 weeks.
Full sync and QA: 2-4 weeks.
Total: 7-12 weeks to fully stabilize.

Scaling, Advanced Features, and Operational Best Practices

Key scaling considerations

Inventory scale, international marketplaces, and repricing sophistication are the three major levers. For sellers scaling from 1,000 to 50,000 SKUs, automation and monitoring replace manual oversight. Expect to add tooling such as advanced repricers, order management systems, and business intelligence.

Essential advanced features to prioritize

Bulk feed management with templates and mapping rules for category-specific attributes.
Real-time inventory synchronization to handle fast-moving SKUs.
Multi-account and multi-marketplace support to split inventory or route orders geographically.
Repricer integration or built-in repricing supporting rules by margin and buy box metrics.
Returns and refunds handling mapped back into Shopify or a connected ERP (enterprise resource planning).

Operational best practices

Use a staging environment or sandbox for large changes. Test bulk updates on 1% of catalog first.
Maintain a single source of truth for product information. Typically, Shopify is the master catalog and Amazon is a sales channel.
Monitor Amazon health metrics daily: Order Defect Rate, Cancellation Rate, Late Shipment Rate. Establish alerts for thresholds.
Reconcile fees monthly. Amazon fees (referral fees, FBA fees, storage) change profit calculations; reconcile P&L at SKU level.

Example workflows and KPIs

KPI targets for a healthy Amazon channel:
Order Defect Rate < 1%
Late Shipment Rate < 4%
Cancellation Rate < 2%
Inventory accuracy > 98%
Workflow for a new SKU launch:
Day 0: create Shopify SKU and product page with Amazon-optimized content.
Day 1: map or create ASIN via integration app and push listing.
Day 2-7: monitor impressions and early sales, adjust price if no Buy Box win within 72 hours.
Day 30: review conversion rate and A/B test title and bullet points.

Scaling example with approximate costs

Growing seller with 5,000 SKUs uses Codisto at $199/month, an advanced repricer at $200/month, and an inventory management system (e.g., Linnworks) at $500/month -> monthly tooling cost roughly $900. Add Amazon fees and shipping. Expect 2-4 weeks implementation plus ongoing 5-10 hours/week operations.

Tools and Resources

Apps and platforms to evaluate (pricing examples are approximate and may change, verify with vendors)

Shopify Amazon sales channel (Shopify)
Pricing: free to connect; requires Shopify plan.
Best for: small merchants, tight Shopify integration.
Codisto LINQ
Pricing: plans often $29-199+/month; enterprise pricing for large catalogs.
Best for: real-time sync, scalable listing control, multi-marketplace.
Sellbrite (GoDaddy)
Pricing: starting around $29/month; higher tiers for more orders.
Best for: mid-size sellers managing multiple marketplaces.
ChannelAdvisor
Pricing: custom enterprise pricing, usually $1,000+/month.
Best for: enterprise brands with global operations and complex routing.
CedCommerce Amazon Integration
Pricing: from ~$19/month to custom; one-time fees possible.
Best for: budget sellers wanting solid feature set.
Linnworks
Pricing: typically $150+/month; varies by order volume and modules.
Best for: inventory-first multi-channel operations.
Zentail
Pricing: custom; targets SMB to mid-market sellers.
Best for: data-driven catalog automation and Amazon optimization.
Repricer tools (for competitive pricing)
Repricer.com (formerly RepricerExpress): starting $50+/month.
Informed.co (formerly Appeagle): $100+/month for advanced features.

Additional resources and links to check

Amazon Seller Central help and SP-API docs for developers.
Shopify Help Center for Amazon sales channel setup.
Vendor onboarding guides and support forums for Codisto, Sellbrite, ChannelAdvisor, CedCommerce.

Cost checklist to budget for first 6 months

App subscription(s): $0 to $1,000+/month depending on choice.
Repricer: $50-300/month.
Implementation and data cleanup: 10-160 hours; budget $500-5,000 if outsourcing.
Amazon fees: referral fees typically 8-20% depending on category; FBA fees vary by dimensions and weight.
Unexpected: listing suppressions and policy removals can require PPC or content optimization spend.

Common Mistakes and How to Avoid Them

Skipping data cleanup before syncing

Problem: Incorrect titles, missing GTINs, wrong categories lead to suppressed listings and poor conversion.
Avoidance: Clean product data first. Run a small pilot batch (10-50 SKUs). Use spreadsheets and validation rules.

Assuming one-size-fits-all sync settings

Problem: A single inventory or price rule can undercut profitable SKUs or oversell low-stock items.
Avoidance: Use segmented rules by SKU, category, or supplier. Set safety stock levels for fast movers.

Ignoring Amazon policy and listing quality

Problem: Listings removed for policy violations or getting low impressions due to poor content.
Avoidance: Follow Amazon image and title rules, provide accurate product details, and monitor performance reports.

Not monitoring health metrics daily

Problem: Late shipments or high defect rates can lead to account suspension.
Avoidance: Set automated alerts for Order Defect Rate, Late Shipment Rate, and cancellations. Allocate responsibility for quick remediation.

Choosing based on price alone

Problem: Cheap apps may lack real-time sync or bulk tools, causing manual work later.
Avoidance: Evaluate based on features and total cost of ownership. Run a 30-90 day ROI projection including labor savings.

FAQ

Do I Need a Separate Amazon Seller Account to Use These Apps?

Yes. You must have an Amazon Seller Central account (Individual or Professional) and link it to the app. Most apps require Professional accounts for bulk listing and API access.

Will Orders Placed on Amazon Appear in Shopify?

Most integration apps import Amazon orders into Shopify so you can fulfill and manage in one place. Confirm that the chosen app supports order import and the shipping/returns handling you need.

How Long Does It Take to Connect Shopify to Amazon?

Simple setups with under 100 SKUs can be done in 1-7 days. Mid-size catalogs (500-2,000 SKUs) typically take 2-4 weeks. Large catalogs (5,000+ SKUs) may require 6-12 weeks for full mapping and QA.

Can I Use the Same SKU for Both Shopify and Amazon?

Yes. Using the same SKU across platforms simplifies mapping and inventory sync. Ensure SKU uniqueness and consistent attribute use (title, brand, UPC/GTIN).

Do These Apps Handle FBA (Fulfillment by Amazon) and FBM (Fulfillment by Merchant)?

Most apps support both FBA and FBM. They will map fulfillment channels and manage inventory differently for FBA stock versus merchant-fulfilled stock. Verify the app supports FBA inventory visibility if you use both.

How Much Will Syncing to Amazon Cost Monthly?

Costs vary widely. Expect $0-50/month for basic native apps, $30-300/month for feature-rich apps, $500+/month for advanced inventory platforms, and $1,000+/month for enterprise solutions. Add repricer fees and Amazon selling fees on top.

Next Steps

Run a 2-week pilot with 20-50 SKUs

Choose an app, install it, and map a small pilot selection. Measure sync accuracy, order flow, and listing health.

Build a 90-day launch plan

Define milestones: data prep, pilot, full catalog sync batches, repricer tuning, and KPI tracking. Assign owners.

Budget and tool stack

Tighten budget for app fees, repricer, and possible onboarding help. Create a cost model including Amazon fees and expected revenue lift.

Monitor and iterate weekly

For the first 90 days review performance reports weekly, addressing suppressed listings, performance metrics, and inventory exceptions.

Checklist before going live

Amazon Seller account: Professional and verified.
Product data: Titles, images, GTINs, and descriptions optimized.
App selected and authorized: Pilot batch tested.
Inventory rules: Safety stock and sync intervals set.
Order flow verified: Amazon orders import and shipping status update working.

Best App to Connect Shopify to Amazon