Real-time inventory synchronization across POS and online store

Purpose

1.1. Seamless real-time synchronization of inventory counts across in-store POS terminals and online storefronts for pet-friendly animal cafes.
1.2. Minimize double-selling and stockouts; provide unified data for both physical and online sales.
1.3. Catch item updates, returns, and new product listings instantly to adjust inventory everywhere.
1.4. Enhance transparency for supply planning, ordering, and customer service accuracy.
1.5. Enable pets’ supply reordering and out-of-stock alerts for both staff and online shoppers.

Trigger Conditions

2.1. New sale transacted on POS (e.g., in-café food, retail treats/toys).
2.2. Order placed online via web store or mobile app.
2.3. Return processed at any sales channel.
2.4. New stock delivery received and logged in system.
2.5. Manual adjustment or correction to stock quantities in back office.

Platform Variants

3.1. Shopify
• API: Inventory Level Update API – Webhook triggers on order/create, inventory_levels/update.

3.2. Square POS
• Function: Inventory.count – Setup real-time webhook subscription on inventory.adjusted event.

3.3. Lightspeed Retail
• Endpoint: Inventory API, ReceiveInventory – Configure callbacks for item updates.

3.4. WooCommerce
• Feature: Webhooks (“Order Created”, “Stock Updated”) – Configure webhook to custom endpoint for synchronization.

3.5. Vend (now Lightspeed X)
• API: Register Inventory Update – Use inventory.update events.

3.6. Clover POS
• API: Inventory API – Subscribe to inventory_item_modified events.

3.7. Toast POS
• Feature: Toast Partner Connect API – Enable Inventory POST/PATCH notifications.

3.8. Revel Systems
• Endpoint: Inventory – Configure webhooks for stockAndInventoryChange events.

3.9. QuickBooks Commerce
• API: Inventory Adjustments – Monitor and sync via inventory.adjustments.read.

3.10. Magento Commerce
• Feature: REST API Inventory – Sync via “inventorySourceItem.save” webhook.

3.11. Squarespace Commerce
• API: Orders/Inventory webhooks – Use inventory.quantityChanged events.

3.12. BigCommerce
• Feature: Webhooks API – Trigger on inventory_level_updated event.

3.13. NCR Silver
• API: Inventory Adjustment – Poll or configure webhook for adjustments.

3.14. PrestaShop
• Feature: Webservice API – Use “stock_availables” resource with custom event dispatch.

3.15. Loyverse
• API Endpoint: Inventory – Capture and sync via “stock change” endpoint polling.

3.16. Ecwid
• API: Webhooks, InventoryUpdated event subscription.

3.17. SQUARESPACE
• Feature: Commerce webhooks – Listen to stock changed events.

3.18. Erply
• API: saveInventoryRegistration, getProductStock.

3.19. Zettle (by PayPal)
• API: Products & Inventory – Configure “inventory updated” webhook.

3.20. SAP Business One
• Feature: DI API, Inventory Transactions Event receiver.

3.21. NetSuite
• Function: Inventory Management SuiteScript UserEvent – Deploy afterSubmit triggers on changes.

3.22. Zoho Inventory
• API: Inventory Adjustments, use webhook on “stock changed”.

3.23. Microsoft Dynamics 365 Commerce
• API: Commerce Inventory, InventoryTransactionCreated event.

3.24. SquareSpace POS
• API: Order and inventory webhooks.

3.25. ToastTab
• API: Inventory API, order/real-time sync webhooks.

Benefits

4.1. Prevents overselling and disappointed café customers & pet owners.
4.2. Fully unified sales and stock reporting for managers.
4.3. Reduces manual double entry and data reconciliation labor.
4.4. Enables automated restock alerts and smart reordering.
4.5. Improves financial tracking and supplier order accuracy.
4.6. Supports omnichannel customer experience with up-to-date availability everywhere.