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Multi-Channel E-commerce Inventory Management System

Technologies: Django MySQL JavaScript CSS HTML

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Multi-Channel E-commerce Inventory Management System

Project Overview: Multi-Channel eCommerce Inventory Management System

This project is a sophisticated, Django-based inventory management platform designed to support multi-channel eCommerce operations across major online marketplaces. It centralizes inventory control, automates order processing, and ensures real-time synchronization across platforms such as Amazon, eBay, Walmart, and more.

The system enables businesses to streamline operations, reduce stock errors, and improve fulfillment efficiency—serving as a scalable backend for high-volume, multi-channel retailers.

Technology Stack

  • Backend: Django 5.1.2 (Python)

  • Database: MySQL with PyMySQL driver

  • Frontend: Tailwind CSS for modern, responsive design

  • API Framework: Django REST Framework for internal/external API endpoints

  • Cloud Services: AWS integration:

    • S3 – Media and file storage

    • SQS – Background queue processing

    • SES/SNS – Email and notification handling

  • Authentication: Django’s built-in authentication system

System Architecture

Core Applications

  • Inventory App: Central module for product and stock management

  • Settings App: System-level configuration and company metadata

  • Refurb App: Workflow and asset management for refurbishment processes

Multi-Channel eCommerce Integration

This system features deep integration with multiple major sales platforms, enabling real-time, bidirectional data exchange.

Supported Sales Channels

  • Amazon (US & Canada): Includes full API coverage, including FBA integration

  • eBay: Inventory sync and order fulfillment

  • Walmart: Marketplace data exchange

  • BackMarket & Reebelo: Specialized support for refurbished electronics

  • ShipStation: Shipping and order fulfillment automation

API Capabilities

  • Inventory Management: Real-time stock level updates across all platforms

  • Order Processing: Automated order import, status update, and fulfillment tracking

  • Product Listings: Channel-specific product creation and updates

  • Pricing Management: Dynamic pricing logic by sales channel

  • Fulfillment: Integration with Amazon FBA and third-party logistics providers

Core Features

1. Product Management

  • Product Types & Categories: Multi-level classification for better organization

  • Attributes & Values: Dynamic and extensible product attribute system

  • SKU Management: Auto-generated SKUs for consistency and traceability

  • Multi-Channel Mapping: Ensures unified product data across all sales platforms

2. Inventory Control

  • Real-Time Stock Tracking: Live updates on inventory movements

  • Purchase Orders: Tracks supplier orders and restocking

  • Sales Orders: Manages order processing from all integrated channels

  • Asset Management: Tracks physical products and refurbishment status

  • Stock Logging: Complete audit trail for every inventory action

3. Sales Channel Management

  • API Credential Storage: Secure token and credential handling

  • Token Lifecycle: Auto-refresh for OAuth tokens across channels

  • Scheduled Jobs: Cron-based automation for syncing data at intervals

  • Platform-Specific Rules: Business logic tailored to each channel’s requirements

Advanced Capabilities

  • Dynamic Price Rules: Automatically adjust pricing based on platform or strategy

  • Fulfillment Automation: Amazon FBA integration and ShipStation syncing

  • Error Handling: Comprehensive logging and retry logic for failed API calls

  • Data Synchronization: Ensures inventory data stays consistent across platforms

  • Scalable Architecture: Designed to support growing SKUs and order volumes

Database Design

The system uses a relational database schema optimized for performance and data integrity, with key models including:

  • Product Master Data: Products, categories, types, attributes, and SKUs

  • Inventory Records: Stock levels, stock logs, warehouse data

  • Order Models: Sales orders, purchase orders, and fulfillment records

  • Channel Integrations: API tokens, settings, and channel mappings

  • Assets: Refurbishment and physical item tracking

Security & Performance

  • OAuth 2.0 Authentication: Secure API access with automated token management

  • Database Optimization: Efficient queries, proper indexing, and relationship design

  • Cron Jobs: Scheduled background tasks for periodic syncs

  • Error Logging: Detailed logging with stack traces and alert notifications

User Interface & Admin Panel

  • Django Admin Customization: Enhanced interface for data control

  • Tailwind CSS Frontend: Responsive, mobile-friendly UI for staff and admins

  • Reusable Templates: Modular template system for scalability and ease of maintenance

  • Advanced Forms: Dynamic forms with autocomplete and validation

Conclusion

This system is a feature-rich, enterprise-grade backend solution for businesses operating across multiple eCommerce platforms. It centralizes product and inventory management, automates fulfillment processes, and ensures real-time synchronization—helping retailers scale operations while maintaining full control and visibility.

Whether managing refurbished electronics or general merchandise, the platform supports scalable, automated, and reliable multi-channel commerce from a single dashboard.