What Happens When a Marketplace Product Comes Back in Stock after Out of Stock?

Sometimes a product on Taobao, Tmall, or 1688 that was previously out of stock becomes available again. However, in these cases, Dropast does not automatically update the product status in Shopify. This is due to technical changes in the marketplace — specifically, a change in the product ID — which breaks the existing synchronization link.

🔁 Why Automatic Sync Stops

When a product goes out of stock and later becomes available again:

• The marketplace often assigns a new internal product ID
• This breaks the original sync between the product in Dropast and the listing in your Shopify store
• As a result, Shopify does not receive updated inventory status through Dropast

🛠 What You Need to Do

To restore synchronization, you must manually reconnect the product:

👉 Follow this guide:

How to Manually Connect a Shopify Product to a Marketplace Product

This guide walks you through:

• Identifying the new version of the Marketplace product
• Re-importing it into your Dropast List
• Manually linking it to the existing product in your Shopify store

Need help re-synchronizing a product or finding the right version in the marketplace? Contact our support team — we’re here to help you keep your store accurate and up to date.