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// PROJECT 007 · Integration

Multi-Platform API Gateway

Unified gateway connecting QuickBooks, Salesforce, and a legacy ERP — one source of truth for inventory and billing at a wholesale distributor.

Node.jsTypeScriptRedisWebhooksOAuth 2.0Docker
Industry
Wholesale Distribution
Engagement
Build & Deploy
Status
Live in production
// Problem

The challenge

Sales, finance, and operations were each reading from a different system. Stock-on-hand on the website didn't match the warehouse, and finance was reconciling invoices against three sources every month-end.

// Solution

What we built

A central integration layer that normalizes inventory, customer, and order entities across QuickBooks, Salesforce, and the legacy ERP. Webhook-driven sync with idempotency keys, retry, and a manual reconciliation console for the rare conflict.

  • Single canonical product and customer schema
  • Real-time push from any system, eventually consistent
  • Audit log for every cross-system write
  • Dead-letter queue with operator UI
// Outcome

Results

Month-end close compressed from 4 days to 1. Website inventory accuracy moved from approximately 78% to over 99%. Sales no longer overcommits on stock that's already promised.

// Have a similar problem?

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