🛒 Multi-Channel Inventory Sync (Mercado Libre + Tiendanube)

Real-time stock synchronization platform designed to eliminate overselling and unify inventory across multiple marketplaces.

Problem

Inventory was managed independently in Mercado Libre and Tiendanube, causing delays in updates and frequent overselling. This impacted fulfillment reliability, customer experience, and operational efficiency.

Solution

I built a centralized stock system that synchronizes inventory in real time across both platforms using webhooks, idempotent processing, and a single source of truth.

Technologies

• React (Vite)
• Node.js / Express
• PostgreSQL (Supabase)
• Mercado Libre API
• Tiendanube API

Key Features

• Centralized stock management across multiple marketplaces
• Real-time synchronization via webhooks
• Idempotency system to prevent duplicate stock updates
• Automated stock propagation after every change
• Stock tracking and auditability
• Secure internal endpoints for operations

Impact

• Eliminated overselling (reduced to 0)
• Improved operational reliability and fulfillment accuracy
• Reduced manual intervention and support workload
• Enabled scalable multi-channel inventory management

Status

Production-ready solution used in a real business environment.

My Role

Full ownership of the project:

• System architecture and design
• API integrations (Mercado Libre & Tiendanube)
• Stock synchronization logic and idempotency strategy
• Database modeling and operational workflows

Demo

No public demo available (private business integration).

Installation

# Backend
npm install
cp .env.example .env
npm run dev

# Frontend
cd frontend
npm install
npm run dev