When the stock of items in PlentyONE drops to 0 or items are deactivated, but these remain active or purchasable in Shopify, this is usually because the affected items are no longer included in the search index of PlentyONE due to your settings.

Cause of the Synchronisation Issue

The Shopify app uses the internal search index to identify items to be exported or updated. If an item is filtered out of the search index due to deactivation or lack of stock, the app can no longer retrieve the item. As a result, no stock updates (e.g. stock = 0) or status changes are transmitted to Shopify anymore.

Step-by-Step Guide to Fix

1. Navigate in your PlentyONE system to: Items » Items and open the affected variant.

2. In the Availability tab, ensure that both the origin Shopify and the linked client are activated.

3. If necessary, correct the stock in the system.

4. Then perform an item cleanup to update the links in the system and clear orphaned data.