ShelfSync eliminates manual inventory spreadsheets, prevents overselling on Amazon & eBay, and alerts your team on Slack the moment stock hits reorder levels — all from one real-time dashboard.
The Problem
Every time an item goes out of stock, you lose the sale — and often the customer. Stockouts on Shopify and Amazon cost 3PL warehouses thousands every month.
Selling items you don't have in stock triggers disputes, negative reviews, and suspended marketplace accounts. One bad batch of oversells can haunt your brand for years.
Copying stock levels from Shopify to Amazon to eBay by hand is a full-time job. Your team burns hours every week on work that should take seconds.
Features
Purpose-built for 3PL warehouses running multi-channel Shopify operations.
Stock levels update across Shopify, Amazon, eBay, and Walmart the instant a sale happens — no delays, no drift, no manual work.
One unified view of every SKU across every warehouse and channel. Filter by location, channel, or reorder status. Built for the way 3PLs actually work.
Set per-SKU reorder thresholds and get instant Slack notifications when stock drops below the limit. Never be caught off guard again.
Connect your Shopify store in under 2 minutes. No developer needed. ShelfSync reads your catalog, maps your SKUs, and starts syncing immediately.
How It Works
Install the ShelfSync app from the Shopify App Store. Authorize and we'll import your full catalog instantly.
For each SKU, set the minimum stock level that triggers an alert. We remember your preferences forever.
Connect your Slack workspace. When stock drops below threshold, your team gets notified immediately.
Pricing
No setup fees. Cancel anytime. 14-day free trial on all plans.
Starter
Up to 2 channels · 1 warehouse
Pro
Unlimited channels · Unlimited warehouses
Need a custom plan? Talk to us →
Ready to sync?
Join hundreds of 3PL warehouses that trust ShelfSync to keep inventory in sync — across every channel, around the clock.
14-day free trial · No credit card required · Cancel anytime