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Unified eCommerce: Seamless Amazon & Walmart Marketplace Integration

Automate multi-channel operations, synchronize data in real-time, and scale your business across the largest online marketplaces with a powerful iPaaS solution.

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The Challenge

The Challenge: Juggling Amazon & Walmart Marketplaces Manually

Managing sales across Amazon and Walmart marketplaces presents significant operational hurdles for multi-channel sellers. Disparate systems, manual data entry, and a lack of real-time synchronization lead to inefficiencies, costly errors, and missed growth opportunities.

  • Manual Data Entry & Duplication: Re-entering orders, inventory, and product details into multiple systems is time-consuming and error-prone.
  • Overselling & Stockouts: Lagging inventory updates lead to selling products that are out of stock or missing sales opportunities due to inaccurate availability.
  • Inconsistent Product Information: Maintaining uniform product descriptions, images, and pricing across both platforms is a constant struggle, impacting brand consistency and SEO.
  • Delayed Order Fulfillment: Manual order processing causes shipment delays, leading to lower customer satisfaction and potential penalties from marketplaces.
  • Complex Financial Reconciliation: Reconciling sales, fees, refunds, and advertising costs from two distinct settlement reports is a labor-intensive accounting nightmare.
  • Lack of Unified Visibility: Without a consolidated view, gaining insights into overall sales performance, inventory health, and profitability across channels is nearly impossible.
Integration Diagram
Solution Illustration
The Solution

The Solution: Seamless Amazon & Walmart Integration with a Modern iPaaS

Our powerful Integration Platform as a Service (iPaaS) provides a comprehensive, low-code solution to connect Amazon Marketplace and Walmart Marketplace with your core business systems. It orchestrates real-time data flow, automates workflows, and provides robust governance, enabling you to manage your multi-channel eCommerce strategy from a single, unified platform.

  • Real-time Bi-directional Data Synchronization: Keep orders, inventory, products, and pricing consistently updated across all systems.
  • Low-Code/No-Code Workflow Automation: Visually design, deploy, and manage complex integration flows without extensive coding.
  • AI-Enhanced Data Mapping & Validation: Accelerate setup with intelligent mapping suggestions and proactively detect data anomalies.
  • Event-Driven Architecture: Leverage webhooks for instant updates, minimizing latency and optimizing API usage.
  • Robust Error Handling & Monitoring: Ensure data integrity with automated retries, dead-letter queues, and proactive alerts.
Implementation Timeline

Go live with Amazon Marketplace + Walmart Marketplace in as little as 2–4 weeks.

A proven, repeatable implementation approach that minimizes risk while getting your team to value quickly.

1

Access Enabled

Secure connections established to both Amazon Marketplace and Walmart Marketplace, with credentials and environments confirmed.

2

Configuration & Mapping

Field mappings, business rules, and workflows configured using visual tools and pre-built templates.

3

Go Live

Launch production-ready integration with monitoring, alerting, and support in place—typically within 2–4 weeks.

Time to Value

2–4 weeks

Typical implementation window from access granted to production go-live for most Amazon Marketplace + Walmart Marketplace deployments.

Project Phases

Discovery
Configure & Map
Validate
Launch

Engagement Model

Guided by Clarity experts with your team involved at key milestones.

Comprehensive Solution Details

  • Real-time Bi-directional Data Synchronization: Keep orders, inventory, products, and pricing consistently updated across all systems.
  • Low-Code/No-Code Workflow Automation: Visually design, deploy, and manage complex integration flows without extensive coding.
  • AI-Enhanced Data Mapping & Validation: Accelerate setup with intelligent mapping suggestions and proactively detect data anomalies.
  • Event-Driven Architecture: Leverage webhooks for instant updates, minimizing latency and optimizing API usage.
  • Robust Error Handling & Monitoring: Ensure data integrity with automated retries, dead-letter queues, and proactive alerts.
  • Scalable & Secure Infrastructure: Handle high transaction volumes securely, complying with industry standards and data privacy regulations.

Technical Integration Details: Connecting Amazon & Walmart

Our iPaaS provides a robust, secure, and scalable framework for integrating Amazon Marketplace and Walmart Marketplace. It handles the complexities of API connectivity, data transformation, error management, and performance optimization, ensuring a seamless flow of information.

Data Flow Steps

Secure API Authentication: Establish secure OAuth 2.0 connections for both Amazon SP-API (Login With Amazon) and Walmart Marketplace APIs. The iPaaS manages token generation, refresh, and secure credential storage.

Event-Driven Triggers: Utilize Amazon SP-API Notifications (webhooks) for real-time events (new orders, order changes). For Walmart, intelligent polling with change detection or internal webhooks trigger workflows.

Data Ingestion & Extraction: Retrieve data from both marketplaces via their respective APIs (e.g., Amazon Orders API, Walmart Orders API, Amazon Reports API, Walmart Feeds API).

Data Transformation & Harmonization: The iPaaS's visual mapping engine transforms marketplace-specific data schemas into a canonical format, ensuring consistency before routing to internal systems.

Business Logic & Validation: Apply predefined or custom business rules and data validation checks (e.g., SKU matching, quantity checks) to ensure data integrity and compliance.

Outbound Data Push: Send processed data to internal systems (ERP/WMS/PIM/Accounting) via their APIs or connectors, and push updates back to Amazon and Walmart (e.g., shipment confirmations, inventory updates).

Error Handling & Monitoring: Implement multi-tiered error handling with automated retries, dead-letter queues, and real-time alerts. Monitor integration health and performance from a centralized dashboard.

Data Touchpoints

Amazon: Orders, OrderItems, Products, Listings, Inventory, Shipments, FinancialEvents, Reports, Customers, Refunds.
Walmart: Orders, Items (Products), Inventory, Price, Shipments, Returns, Customers, Feeds, Promotions.
Internal Systems (e.g., ERP): Sales Orders, Purchase Orders, Inventory, Products, Customers, GL Accounts, RMA.

"iPaaS acts as the central hub. Orders from Amazon (Webhooks) and Walmart (API) flow into iPaaS, then to ERP/WMS. Inventory/Product/Price updates from ERP/PIM flow through iPaaS to Amazon (API) and Walmart (API/Feeds). Shipment updates from WMS flow through iPaaS back to Amazon and Walmart. Financial data from both marketplaces flows through iPaaS to Accounting."

Pricing

Simple, transparent pricing for Amazon Marketplace + Walmart Marketplace.

Start with a single integration pair and scale as your business grows—without surprise fees or transaction penalties.

Connect™ Plan

Clarity Connect

$595 /mo

Billed annually • Includes one production integration pair

  • Unlimited transactions and API calls within fair-use limits.
  • Visual workflow designer and reusable mapping templates.
  • Monitoring, alerting, and access to Clarity’s support team.
View full pricing & options
Innovative & Robust

How Middleware Integration Works

Benefits of Integrating Amazon Marketplace

Integrating Amazon Marketplace fosters greater efficiency and data accuracy. Automate your critical business processes to deliver consistently outstanding results.

Hover over the steps on the right to see detailed integration points.
Data Mapping

Core Entities & Cross-Marketplace Mapping

Effective integration hinges on accurate mapping of key business entities between Amazon, Walmart, and your internal systems. Our iPaaS provides the tools to manage these complex transformations.

Order

The central entity representing a customer's purchase. Critical for initiating fulfillment and financial processing.

Amazon Marketplace Fields

amazonOrderId purchaseDate orderStatus fulfillmentChannel shippingAddress orderTotal OrderItem (nested)

Walmart Marketplace Fields

purchaseOrderId customerOrderId orderDate orderStatus shippingInfo orderLines (nested)

Mapping Notes

Map `amazonOrderId` and `purchaseOrderId` to a common `externalOrderId` in ERP. Harmonize `orderStatus` values (e.g., 'Pending', 'Acknowledged', 'Shipped'). `OrderItem` (Amazon) maps to `OrderLine` (Walmart), both requiring mapping to internal product SKUs.

Next Steps

See Amazon Marketplace + Walmart Marketplace integration in action.

Explore a guided demo, start a sandbox integration, or speak directly with our solution architects about your specific use cases.

Start Free Trial Request Live Demo
Real-World Applications

Integration Use Cases

Explore how the integration behaves in real business scenarios, with clearly defined steps, outcomes, and execution patterns.

Unified Order Fulfillment & Shipment Tracking

Automate the flow of orders from both Amazon and Walmart into your ERP/WMS, then push shipment confirmations and tracking numbers back to the respective marketplaces.

Integration Steps:

  1. 0 Customer places order on Amazon or Walmart.
  2. 1 iPaaS captures order via Amazon SP-API Notification or Walmart Orders API.
  3. 2 Order is transformed and created as a sales order in ERP/WMS.
  4. 3 WMS processes fulfillment and generates tracking information.
  5. 4 iPaaS pushes tracking data to Amazon (SP-API) and Walmart (v3/orders).
  6. 5 Customer receives shipment notification and order status is updated.

Business Outcome

Reduced order processing time, improved delivery accuracy, enhanced customer satisfaction, and compliance with marketplace fulfillment SLAs.

Frequency

Real-time, event-driven

Business Value

Key Integration Benefits

Discover the strategic advantages and business value of seamless integration between your systems.

Boost Operational Efficiency
Automate manual data entry, order processing, and inventory updates, saving countless hours and reducing human error across both Amazon and Walmart.
Eliminate Overselling & Stockouts
Achieve real-time inventory synchronization from your ERP/WMS to Amazon and Walmart, ensuring accurate stock levels and preventing costly oversells or missed sales.
Accelerate Order Fulfillment
Streamline the entire order-to-shipment process with automated order ingestion and shipment updates, improving delivery times and customer satisfaction.
Ensure Data Consistency & Quality
Harmonize product information, pricing, and customer data across Amazon, Walmart, and your internal systems, maintaining brand integrity and data accuracy.
Simplify Financial Reconciliation
Automate the parsing and posting of complex Amazon settlement reports and Walmart transactions to your accounting system, ensuring accurate financial reporting and faster month-end close.
Scale Multi-Channel Growth Confidently
Build a resilient, scalable integration foundation that supports increasing order volumes and product catalogs across Amazon and Walmart without compromising performance.
Gain Unified Performance Insights
Consolidate sales, inventory, and financial data from both marketplaces into a single source, enabling comprehensive analytics and informed strategic decisions.
✨

Boost Operational Efficiency

70%+ Reduction in manual effort

📋 What You Get

Automate manual data entry, order processing, and inventory updates, saving countless hours and reducing human error across both Amazon and Walmart.

💼 Business Impact

This benefit directly contributes to 70%+ improvement in Reduction in manual effort, enabling your team to focus on high-value strategic initiatives.

Technical Documentation

API Endpoints & Data Logic

Technical details for developers and architects.

Method Endpoint Purpose
GET /orders/v0/orders Retrieve new orders, acknowledge, and update status.
PUT /listings/2021-08-01/items Create/update product listings (price, quantity).
GET /fba/inventory/2020-09-04/summaries FBA inventory summaries.
POST /reports/2021-06-30/reports Request various reports (settlement, FBA).
GET /finances/v0/financialEvents Detailed financial transactions.
POST /notifications/v1/subscriptions Subscribe to real-time event webhooks.

⚡ Transformation Logic

  • Schema Normalization: Convert disparate marketplace schemas into a consistent internal data model.
  • Attribute Mapping: Map complex product attributes (e.g., Amazon's nested JSON attributes to Walmart's flat structure).
  • Value Translation: Convert marketplace-specific codes (e.g., order statuses, carrier codes) to internal equivalents.
  • Data Aggregation: Consolidate inventory from multiple sources or financial transactions from reports.
  • Conditional Logic: Apply transformations only if certain conditions are met (e.g., apply a tax rule based on shipping address).
  • Data Masking/Encryption: Mask sensitive PII data before logging or storing temporarily.

🛡️ Error Handling

  • API Rate Limit Exceeded: iPaaS automatically throttles and retries.
  • Invalid Product SKU: Data validation prevents invalid SKUs from being pushed.
  • Network Connectivity Issues: Automated retries and circuit breakers ensure resilience.
  • Data Type Mismatch: Transformation logic handles conversions, alerts for unhandled types.
  • Marketplace Downtime: Automatic retries and queueing of requests until service is restored.
Support & Information

Frequently Asked Questions

Common questions about integration implementation, security, and best practices.

General FAQs

▸ What is the primary benefit of integrating Amazon and Walmart Marketplaces?
The primary benefit is achieving unified, real-time automation across your multi-channel eCommerce operations. This eliminates manual data entry, prevents overselling, accelerates order fulfillment, and streamlines financial reconciliation for both marketplaces, leading to significant cost savings and increased efficiency.

Technical FAQs

▸ How does this integration handle real-time inventory synchronization between Amazon, Walmart, and my ERP/WMS?
Our iPaaS solution uses an event-driven architecture. Whenever inventory changes in your ERP/WMS, an event is triggered to the iPaaS, which immediately transforms and pushes the updated stock levels to both Amazon (FBM/FBA) and Walmart Marketplace APIs. This intelligent, near real-time sync prevents overselling.

Low-Code FAQs

▸ Can I use low-code/no-code tools to customize my Amazon & Walmart integration workflows?
Absolutely. Our modern iPaaS platform features extensive low-code/no-code capabilities. Business users and citizen integrators can visually design, configure, and modify complex workflows, data mappings, and business rules for Amazon and Walmart integrations using a drag-and-drop interface, without writing extensive code.

AI FAQs

▸ How does AI enhance Amazon and Walmart Marketplace integration workflows?
AI significantly enhances workflows by providing intelligent mapping suggestions, proactive anomaly detection (e.g., suspicious orders or unusual fees), predictive inventory management, and automated error resolution. This leads to higher data quality, reduced manual intervention, and proactive operational insights across both marketplaces.

Challenges FAQs

▸ What are the common challenges of integrating Amazon and Walmart, and how does an iPaaS solve them?
Common challenges include complex data mapping between diverse schemas, managing distinct fulfillment models (FBA/FBM), reconciling complex financial reports, handling high transaction volumes, and optimizing API rate limits. An iPaaS addresses these with visual mapping tools, robust connectors, scalable orchestration, and intelligent error handling.

Security FAQs

▸ How do you ensure data security and compliance (e.g., GDPR, CCPA) for customer data from both marketplaces?
We prioritize security and compliance. All communication uses HTTPS/TLS 1.2+ encryption. API credentials (OAuth tokens) are securely managed and rotated. Customer PII is handled with data minimization and encryption at rest. Our platform adheres to GDPR, CCPA, and marketplace-specific data privacy policies, with comprehensive audit trails.

Fulfillment FAQs

▸ Can this integration handle both FBA and FBM orders from Amazon?
Yes, the integration is designed to handle both FBA (Fulfillment by Amazon) and FBM (Fulfillment by Merchant) orders. For FBA, the iPaaS can retrieve order notifications and reconcile inventory. For FBM, it fully orchestrates the order lifecycle, from creating sales orders in your ERP/WMS to pushing shipment updates back to Amazon.

Pricing FAQs

▸ What is the best way to manage pricing updates for thousands of SKUs across both Amazon and Walmart?
For large-scale pricing updates, the iPaaS leverages Walmart's Price API and Feeds API, and Amazon's Listings Items API. Your pricing engine or ERP pushes updates to the iPaaS, which then intelligently batches and submits these changes, ensuring data transformation, adherence to marketplace policies, and management of API rate limits for optimal efficiency.
Pricing

Simple, transparent pricing for Amazon Marketplace + Walmart Marketplace.

Start with a single integration pair and scale as your business grows—without surprise fees or transaction penalties.

Connect™ Plan

Clarity Connect

$599 /mo

Billed annually • Includes one production integration pair

  • Unlimited transactions and API calls within fair-use limits.
  • Visual workflow designer and reusable mapping templates.
  • Monitoring, alerting, and access to Clarity’s support team.
View full pricing & options
Next Steps

See Amazon Marketplace + Walmart Marketplace integration in action.

Explore a guided demo, start a sandbox integration, or speak directly with our solution architects about your specific use cases.

Start Free Trial Request Live Demo