Shopify ERP Real-Time Stock Sync

I need a seamless, real-time bridge between our Shopify storefront and our in-house ERP, ACME. Whenever new inventory lands in the warehouse, a sale reduces available quantity, or a manual adjustment/return is logged in ACME, the exact stock level must instantly reflect on every Shopify product page without delay.

Your job is to design, build, and deploy this two-way integration. My team can expose or consume REST/GraphQL endpoints on the ACME side, and I can generate API credentials in Shopify. Webhooks, polling safeguards, or a lightweight middleware layer are all acceptable—as long as every trigger above updates Shopify in real time and survives high-volume traffic.

Deliverables
• Production-ready integration code (language/tool of your choice)
• Deployment or setup guide for our sysadmin
• Post-deployment test plan proving that the three triggers update Shopify instantly and accurately
• Brief documentation outlining endpoints, payload structure, and error-handling strategy

I’ll be available for quick clarifications and to provide sandbox credentials for both platforms.