# Shopify Inventory Two-Way Sync is here

> Published: 2026-10-22
> Updated: 2026-10-22
> Author: Jackson Mclean
> Canonical: https://finalpos.com/blog/shopify-inventory-two-way-sync-is-here

Final's Shopify integration now syncs inventory in both directions — sales on Shopify update your Final stock instantly, and sales at your counter update Shopify, with automatic conflict resolution and multi-location mapping.

## Sell everywhere. Count once.

If you sell on Shopify and in person, keeping stock counts accurate across both channels has always required manual work — or accepting that the numbers will drift. That ends today.

Final's Shopify integration now syncs inventory in both directions. A sale on Shopify decrements your Final stock immediately. A sale at your counter updates Shopify just as fast. No manual reconciliation, no spreadsheet patches.

## What's included

**Real-time two-way sync** Every inventory movement — whether it originates on Shopify or at your Final Station — is reflected on both sides within seconds.

**Race-condition protection** When a sale happens on both channels at the same moment, the sync engine uses watermark tracking to process updates in the correct order and prevent stale data from overwriting accurate counts.

**Automatic drift correction** A background reconciliation process runs continuously. If a webhook is ever missed or an update is delayed, the system detects the discrepancy and corrects it automatically — no alert, no action required from you.

**Multi-location mapping** Map each of your Shopify fulfillment locations to the corresponding Outlet in Final. Inventory adjustments flow to exactly the right place.

**Sync audit log** Every inventory sync event is recorded with its source, timestamp, quantity change, and resolution status. You have a full history of what moved, when, and why.

**Conflict alerts** In the rare case where a conflict cannot be resolved automatically, a dashboard alert surfaces the SKU details and retry history so you can review and resolve it manually.

## How to get started

Head to **Settings → Integrations → Shopify → Inventory** to map your Shopify fulfillment locations to your Final Outlets and turn on two-way sync. Full setup instructions are in the help center.

Already using the Shopify integration? Your catalog sync settings are unchanged — inventory sync is configured separately and you stay in control of each direction.