This trigger automatically detects when any product variant in your store reaches zero inventory. Once activated, it captures the variant details and product information needed to update the product status. The trigger runs continuously in the background, so no manual monitoring is required. It passes the out-of-stock variant data to the next step for product retrieval.

The workflow automatically retrieves the full product details using the product ID from the out-of-stock variant. This includes all variants, inventory levels, product description, and current status information. No configuration is needed as it uses the product ID from the trigger. The retrieved product data gets passed to the counting step to analyze remaining inventory across all variants.

This loop examines all variants of the product and counts only those with inventory quantity greater than zero. The counting logic filters through each variant's inventory level automatically. If the count reaches zero, it means all variants are out of stock and the product should be updated. The final count number determines whether the workflow continues to the next filtering step.

The filter checks if the variant count from the previous step is less than or equal to zero. Only when this condition is true (meaning no variants have inventory) does the workflow proceed to update the product. This prevents premature updates when some variants are still available for purchase. If variants with inventory exist, the workflow stops here without making changes.

The workflow appends an out-of-stock message to the existing product description in your Shopify store. The default message "This product is currently out of stock, please check back soon!" gets added to the end of your current product description. You can customize this message by editing the text in the body_html field. The updated description immediately appears on your storefront to inform customers.

This step unpublishes the product from a specific sales channel that you select during setup. You'll need to choose which publication (like your Online Store, Facebook Shop, or other sales channels) to unpublish from by entering the publication ID. The product remains in your Shopify admin but becomes hidden from the selected storefront. You can find publication IDs in your Shopify admin under Sales Channels settings.