Shopify store (Real time quantity sync)

Requirements

Shopify Store (Real-Time Quantity Sync) pulls the quantity from a main Shopify store and updates it instantly in another store (sub-store). It keeps inventory aligned without manual updates.

• The main store installs syncX: Stock Sync (the free plan is sufficient).
• The sub-store requires a paid plan for one-way sync. Any paid plan is sufficient; select the tier based on the number of Update Feeds, the store’s product/variant allowance, and any scheduled update feeds you also need.
• Two-way sync requires paid plans on both stores. Learn more here about product limits.

Real-time sync triggers only when quantities change in the main store. Only products that receive inventory changes after you activate the feed will sync. Only matching SKUs or barcodes will update — non‑matching products are ignored.

How to Set Up Real-Time Quantity Sync

Go to App → Create New Feed → Update Existing Products in Store

1. Select Feed Type: Choose Update Existing Products in Store.
2. Select Connection: Choose Shopify Store (Real-Time Quantity Sync) and click Confirm.
3. Authenticate Main Store: Enter the Public Token from the main store’s Manage Account page into the sub-store setup.
4. Select Inventory Location: Choose the inventory Location from the main store that you wish to sync.
5. Map Columns: Proceed to Step 2: Matching Column. Columns and fields will map automatically.
6. Configure Location Mapping: Click Smart Settings on the Quantity field if you want to link quantity updates to specific sub-store locations.
7. Set Quantity Sync Rules: In the Quantity field's Smart Settings, choose whether to update the quantity when decreasing or update sub-store quantities based on the main store's quantity.
8. Configure Low-Stock Alerts: Set real-time low-stock alerts to receive email notifications when stock reaches specified thresholds.

9. Apply Product Filters: In Step 3: Filter, filter products using supported options (Tag and Published status).
10. Enable Feed Inactivity Alert: In Step 4: Advanced Settings, toggle on Feed inactivity alert to receive an email notification if no updates occur within 24 hours.

11. Review Sync Reports: Download the SKU Update Report (Last 24 Hours) to review recent real-time quantity changes.

Example:

Two-way sync allows both stores to send and receive quantity updates from each other, keeping inventory aligned on both sides.

• Both stores must complete the same setup.
• Create and activate one feed in each direction; bidirectional syncing therefore requires at least two feed slots across the stores.
• Both stores require paid plans for two-way quantity sync.
• Only products or variants with matching SKUs are synchronized. Products that exist in only one store or have no matching SKU are excluded.

Good Articles to Continue

• Real-Time Sync Product Limits → Learn more about product limits and plan requirements for real-time quantity sync.

Updated on: 08/10/2026