CASE STUDY • Enterprise Automation & Middleware
High-Volume Inventory Orchestration Engine
Multi-Brand E-Commerce Retailer operating across 6 global ERP environments and 14 sales channels.
Sync Latency
< 8 sec
Reduced from 4 hours down to near real-time
Order Cancellation
0.02%
Virtually eliminated overselling penalties
Daily Peak Load
2.4M
Atomic inventory mutations processed daily
The Problem & Operational Impact
Synchronizing real-time stock balances across disparate legacy ERP systems (SAP, NetSuite, custom DBs) relied on legacy periodic cron batch jobs. Inventory lag resulted in overselling penalties and canceled customer orders.
IMPACT: Over $180,000 in monthly lost sales due to buffer stock lockouts and marketplace chargeback penalties caused by stockout delays.
System Architecture & Engineering
Engineered a hybrid n8n and FastAPI microservice architecture. Webhooks stream inventory mutations instantly into an event buffer; a custom Python engine calculates allocation rules and executes atomic updates.
Implementation Highlights
- ▪Distributed queue architecture built on Redis and n8n webhooks.
- ▪Exponential backoff retry policy handling legacy ERP 503 drops.
- ▪Real-time dead-letter queue (DLQ) visualizer for operational teams.
- ▪Sub-second lock-free inventory allocation logic.
TECH STACK USED
n8nFastAPIPythonRedisPostgreSQLDocker