How to sync inventory with duplicate SKUs?

Yes, you can sync by enabling this option, which updates duplicate SKUs with the same product identifier.

By default, if multiple products share the same SKU or identifier, only the first matching product will be updated. Enabling the duplicate‑update option ensures all matching products are updated.

However, Stock Sync does not synchronize inventory between duplicate products inside the same Shopify store when one of them sells. It only applies feed updates from an external source, such as a file, Google Sheet, supplier, or another Shopify store. For order-based inventory sharing between identical SKUs, use Shopify or a dedicated inventory-management app.

If your store contains duplicate SKUs across different products, this may also cause issues such as skipped updates or missing data during feed processing. In such cases, review and merge duplicate product entries or assign unique SKUs to prevent conflicts.

You can find these options from Matching Column (Step 2) > Product Identifier field > Update duplicate products with the same product identifier.

Updated on: 22/07/2026