Amazon Integration Services
Connect your Amazon channel to every system your business runs on
Fragmented channel data, manual order reconciliation, and disconnected fulfillment systems slow every Amazon brand that has grown past the basics. Amazon integration services replace the manual middle layer with a single connected system, so your Shopify, ERP, third-party logistics provider, and Amazon channel speak the same language automatically.
Submit brief → call within 48 hours → scoped proposal in 3 days → Sprint 1 begins within 1 week of sign-off
80+
integrations built
Shopify · FBA · ERP
primary integration pairings
API-first
all integrations are custom-built, not plug-and-play
Why disconnected systems cap Amazon growth
The operational cost of running Amazon as an isolated channel
Without Amazon integration services
- Inventory counts reconciled manually between Amazon, Shopify, and warehouse. Daily operations time spent on data that should move automatically.
- FBA restock decisions made on stale data. Overselling on Amazon while Shopify oversells the same stock keeping unit through a separate stock pool.
- Amazon order data lives in Seller Central while revenue reporting lives in an ERP. No single view of channel profitability or customer lifetime value.
- Catalog updates (prices, descriptions, variants) applied manually per platform. Amazon is always a version behind the source of truth.
With Redefine Amazon ecommerce integration
- Inventory synchronized in real time across Amazon, Shopify, and warehouse. One stock pool, zero manual reconciliation.
- FBA replenishment triggered automatically from live sell-through data. Amazon never runs out while Shopify stock is sitting in a warehouse.
- Amazon orders, revenue, and returns flow directly into your ERP. One view of channel profitability without manual data transfer.
- Catalog updates pushed from a single source of truth to Amazon listings automatically. Price and content stay synchronized without manual uploads.
Before and after Amazon marketplace integration
See what your operation looks like before and after integration
Toggle between the two states to compare how data, inventory, and orders flow across your Amazon channel. The difference is visible in hours saved per week and errors eliminated per month.
Fragmented systems
FBA Units (SKU-001)240 units
Last updatedManual export yesterday
Orders todayNot synced to Shopify
Manual reconciliation
Inventory (SKU-001)265 units (stale)
Amazon ordersNot imported
RiskOversell possible
Reporting gap
Daily operations tasks (manual)
- Export Seller Central report
- Reconcile with Shopify CSV
- Update ERP manually
- Approximately 3.5 hours per day wasted
Live sync
FBA Units (SKU-001)
240, live
Shopify inventory
240, synced
Last sync42 seconds ago
Automated flow
Amazon orders today
47 auto-imported
ERP updated
Automatic
Oversell riskEliminated
Zero manual operations
Daily automation replaces manual tasks
- Inventory synced automatically
- Orders imported and routed
- ERP updated without manual entry
- 3.5 hours per day reclaimed
Amazon Application Programming Interface integration
architecture
How your Amazon application programming interface integration connects every system
Every integration uses Amazon's Selling Partner Application Programming Interface as the data gateway. Click any node to see what flows through each connection.
Click any node to explore the connection
Amazon Selling Partner Application Programming Interface
Gateway
Every integration flows through Amazon's Selling Partner Application Programming Interface
The Selling Partner Application Programming Interface is Amazon's official data gateway for third-party systems. Every inventory sync, order import, catalog update, and fulfillment trigger uses authenticated endpoints. We build and maintain the application programming interface layer so you never interact with raw endpoints directly.
Authentication
OAuth 2.0 managed
Rate limit handling
Automatic retry queuing
Error monitoring
24/7 alerting
Shopify Integration
Amazon plus Shopify: one inventory pool, two channels
Shopify is the most common direct-to-consumer channel paired with Amazon. The integration syncs inventory in real time, imports Amazon orders into Shopify for unified fulfillment reporting, and pushes catalog updates from Shopify as the source of truth to Amazon listings. Amazon Multi-Channel Fulfillment can route Shopify orders through FBA stock.
Explore Shopify integration details →
BigCommerce Integration
BigCommerce plus Amazon: catalog, inventory, and order sync
BigCommerce brands selling on Amazon need the same real-time inventory protection and order routing as Shopify brands. The integration syncs your BigCommerce product catalog to Amazon listings, keeps inventory unified, and routes Amazon orders into your fulfillment pipeline.
Explore BigCommerce integration →
FBA Integration
FBA fulfillment integrated with your inventory system
FBA stock levels are visible inside your other systems in real time. Replenishment alerts trigger automatically from sell-through rates. Amazon Multi-Channel Fulfillment routes direct-to-consumer orders through FBA stock, unified under one inventory pool across all your channels.
Explore FBA integration details →
ERP Integration
Amazon orders and revenue flowing directly into your ERP
Amazon order data, returns, and reimbursements are pushed directly into your ERP (NetSuite, NAV, Business Central, or custom) without manual data entry. One view of channel profit and loss, inventory cost, and customer data across Amazon and your primary systems.
Explore ERP integration options →
Third-Party Logistics / Warehouse Management Integration
Amazon Fulfilled by Merchant orders routed directly to your third-party logistics provider
Fulfilled by Merchant orders arrive in Amazon and route automatically to your third-party logistics or warehouse management system. Shipping confirmation and tracking data flows back to Amazon automatically, meeting service level agreement requirements without manual touch points.
Explore Fulfilled by Merchant integration details →
Inventory Sync
Real-time inventory sync eliminates oversell risk
Inventory counts update across all connected systems within seconds of a sale on any channel. Amazon, Shopify, and your third-party logistics provider see the same stock number at all times. Oversell risk is eliminated without requiring your team to manually reconcile counts.
Order Routing
Amazon orders routed, confirmed, and reported automatically
Fulfilled by Merchant orders are pushed to your fulfillment system with all required data: buyer address, ASIN, quantity, and service level agreement deadline. Shipping confirmation loops back to Amazon automatically. FBA orders appear in your ERP for revenue and margin reporting without manual entry.
Catalog Push
Your product catalog pushed to Amazon from a single source
Title, bullets, price, and variant data maintained in your primary system (Shopify, ERP, or product information management) sync to Amazon automatically. Price changes, new stock keeping units, and catalog corrections reach Amazon within minutes of the source update. No manual upload, no version lag.
Integration types available
Every Amazon ecommerce integration your operation needs
Each integration below is built custom to your stack. No plug-and-play connectors that break when Amazon changes an application programming interface endpoint. Every connection is maintained and monitored by our team.
Platform integration
Shopify, BigCommerce, WooCommerce, and Magento connected to Amazon with real-time inventory sync and order routing.
ERP integration
Amazon orders, returns, and revenue pushed directly into NetSuite, Microsoft NAV, Business Central, or custom ERP. No manual data entry.
Fulfillment integration
FBA and Fulfilled by Merchant fulfillment integrated with your third-party logistics provider or warehouse management system. Amazon Multi-Channel Fulfillment routes direct-to-consumer orders through FBA stock. Tracking confirmation flows back automatically.
Advertising data integration
Sponsored Products, Sponsored Brands, and demand-side platform data connected to your reporting stack. Advertising cost of sales, total advertising cost of sales, and attributed revenue visible alongside organic data.
Marketplace expansion
Existing Walmart, TikTok Shop, or international marketplace sellers expanding to Amazon. Catalog, inventory, and order systems shared across marketplaces from one integration layer.
Vendor Central integration
Vendor Central order management, purchase order processing, and invoice automation integrated with your supply chain. Purchase order responses and advance shipping notices automated.
Integration pricing
Scoped before work starts · line-by-line pricing · no commitment to receive a proposal.
Client proof
Multi-channel integration that unified Amazon FBA and direct-to-consumer systems from launch
DTC Health and Wellness
The brand
A funded direct-to-consumer health and wellness startup launched from zero to a multi-channel ecommerce operation with Amazon FBA, Shopify direct-to-consumer, and unified fulfillment as the foundation.
Integration challenge
No Amazon presence, no direct-to-consumer storefront, no unified fulfillment strategy, and no lifecycle marketing system existed at launch. The integration challenge was building all systems simultaneously and connecting them from day one, not retrofitting integration into an already-fragmented stack.
Outcome
Unified fulfillment via Amazon FBA and Multi-Channel Fulfillment for centralized inventory across Amazon and direct-to-consumer. One stock pool, two channels, zero manual reconciliation from launch day.
Integration milestone timeline
Sprint 1
Amazon Brand Registry and Selling Partner Application
Programming Interface access established
Trademark protection secured. Brand Registry approved.
Selling Partner Application Programming Interface
credentials provisioned for all integration endpoints.
Sprint 2
FBA integration and inventory sync layer built
Amazon FBA configured. Shopify inventory connected to
FBA stock pool via Selling Partner Application
Programming Interface. Real-time sync tested across both
channels.
Sprint 3
Amazon Multi-Channel Fulfillment activated for
direct-to-consumer orders
Shopify direct-to-consumer orders routed through Amazon
Multi-Channel Fulfillment automatically. FBA stock
fulfills direct-to-consumer without a second warehouse
operation.
Live
Unified fulfillment across Amazon and direct-to-consumer
channels
Brand launched with trademark protection, Brand Registry
access, fully branded Amazon presence, and a
conversion-optimized Shopify store sharing one
centralized FBA inventory pool.
0
stock pool for both channels
0
manual inventory reconciliation steps
Nutraflav
Health and Wellness Direct-to-Consumer Brand, Amazon Integration Client
Why Redefine Amazon integration services
What separates a custom Amazon marketplace integration from a connector tool
Integration capability
Connector tools
Redefine
Custom application programming interface logic for your specific stack and data model
Maintained and monitored when Amazon changes Selling Partner Application Programming Interface endpoints
Self-managed
Real-time inventory sync across unlimited channel combinations
Limited presets
Error handling and retry logic built into every data flow
Amazon Vendor Central electronic data interchange and purchase order automation supported
Scoped line-by-line proposal before any access or development
Common questions
Amazon integration services questions answered
Connector tools map preset data fields between two platforms and break when either platform changes its application programming interface. Custom Amazon integration services build the data layer to your specific stack: your data model, your business logic, your ERP field names. When Amazon changes a Selling Partner Application Programming Interface endpoint (which happens regularly), we update the integration. You do not have to rebuild or switch tools.
We build integrations for Shopify, BigCommerce, WooCommerce, Magento (Adobe Commerce), NetSuite, Microsoft Dynamics NAV, Business Central, custom ERPs, third-party logistics providers, warehouse management systems, and marketplace expansion from Walmart and TikTok Shop. If your system has an application programming interface or data export capability, it can be integrated with Amazon's Selling Partner Application Programming Interface.
A standard Shopify to Amazon inventory sync and order routing integration takes 3 to 6 weeks from sign-off to go-live, depending on your data complexity and the number of connected systems. An ERP integration with custom field mapping and order routing logic takes 6 to 12 weeks. Your proposal includes a week-by-week delivery schedule with milestones and go-live date so you know exactly what to expect.
Amazon Multi-Channel Fulfillment allows your FBA inventory to fulfill orders from channels other than Amazon, including your Shopify direct-to-consumer store. The integration connects your direct-to-consumer checkout to the Multi-Channel Fulfillment application programming interface, so when a Shopify order is placed, it is automatically routed to Amazon FBA for picking, packing, and shipping. Your customer receives the same FBA delivery speed without you operating a separate warehouse for direct-to-consumer. We build the integration layer that makes Multi-Channel Fulfillment invisible to your team.
Yes. Amazon's Selling Partner Application Programming Interface updates endpoints, deprecates older application programming interface versions, and changes authentication requirements on a schedule. We monitor all connected integrations and push updates before deprecated endpoints cause failures. Ongoing maintenance is scoped as part of the original proposal. You receive notification of any Amazon-side changes and the timeline for the update before it affects your live integration.
Is this right for you?
Good fit and not a fit
We work best with brands that are operationally ready for a custom integration. Here is an honest read.
Good fit for
- Brands selling on Amazon who also run a Shopify, BigCommerce, or custom storefront and need them sharing one inventory pool.
- Operations teams spending more than 2 hours per day on manual reconciliation between Amazon and another system.
- Brands on ERP systems (NetSuite, NAV, Business Central) that need Amazon channel data flowing into financial reporting automatically.
- New Amazon sellers who want to build the integration correctly from launch rather than retrofit it later.
Not a fit if
- You are pre-revenue and not yet selling on Amazon. A custom integration is not the right starting point.
- You only sell on Amazon and have no other system that needs to receive data. A standalone Seller Central account does not require a custom integration layer.
- You need a plug-and-play solution with no technical setup. Our builds are custom-coded, not drag-and-drop.
- You need the integration live within a week. A scoped custom build needs 3 to 6 weeks from sign-off to go-live.
Not sure? Tell us your situation and we will be straight with you.
Plan your integration
Tell us what systems you need Amazon to talk to
Submit a brief and receive a scoped integration proposal with a delivery timeline within 3 business days.
Scoped proposal in 3 days, includes delivery timeline, system access required, and line-by-line pricing
Call in 48 hours
Proposal in 3 days
80+ integrations
Application programming interface-first builds
Submit your integration brief
Call within 48 hours → scoped proposal in 3 days → Sprint 1 begins within 1 week of sign-off
Connect your channels
Every day your systems are disconnected is a day your team manually fills the gap
Submit a brief today and receive a line-by-line scoped integration proposal within 3 days. No commitment. No pitch.
No commitment. No pitch. Submit brief → call in 48 hours → proposal in 3 days.
