---
title: SKU Aliases and Inventory Sync
description: A SKU Alias links two or more SKUs to represent the same physical product across multiple e-commerce platforms. This ensures inventory levels stay accurate, even when different SKUs are used on differ
---

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# SKU Aliases and Inventory Sync

A **SKU Alias** links two or more SKUs to represent the **same physical product** across multiple e-commerce platforms. This ensures inventory levels stay accurate, even when different SKUs are used on different stores.

When SKU Aliases are configured and **Inventory Write-Back** is enabled, inventory changes are automatically synchronized across all connected stores. In order details, aliased SKUs will appear as the **master product**.

---

### **Step 1: Set Up SKU Aliases**

1. Navigate to the **Inventory** tab.
2. Locate the **Master Product** (the SKU you want displayed in the order details).
3. Under **SKU Aliases**, click the **Add SKU** button.
4. In the **SKU Alias** field, enter the alternate SKU.
5. From the **store selection dropdown**, choose each connected store where this alias appears.
6. Click the **Save** button.

---

### **Step 2: Enable Inventory Write-Back to Stores**

**Inventory write-back** is supported for the following stores:

- BigCommerce
- Cart Rover (and integrations through Cart Rover
- eBay
- Magento  
  Shopify
- Squarespace
- Square
- Walmart
- WooCommerce

**How to Enable Inventory Write-Back:**

1. Go to the **Settings** page.
2. Click on the **Stores** section under **Account**.
3. Scroll down to **Inventory Updates**.
4. Select **Read & Write**.
5. Click the **Save** button.

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