Product Displaying As Sold Out When There Is Inventory

Topic summary

A merchant added inventory to a previously sold-out product, but the item still displays as unavailable on their storefront. They’re using a Klaviyo Back In Stock integration with custom code added to their theme.liquid file.

Potential causes identified:

  • Inventory levels may not be properly updated in Shopify admin
  • Klaviyo Back In Stock code could be incorrectly implemented in theme.liquid
  • Configuration issues within Klaviyo settings (active integration, linked product, inventory-based triggers)
  • Browser or Shopify cache preventing the update from displaying
  • Theme compatibility problems with the Klaviyo BIS integration

Status: The issue remains unresolved. One responder asked whether any apps are being used, suggesting further troubleshooting may be needed to identify conflicts or configuration errors.

Summarized with AI on November 8. AI used: claude-sonnet-4-5-20250929.

We added inventory for a previously sold out product, but it isn’t working. We are using a Klayvio Back In Stock integration so we added code to our theme.liquid file.

https://blairritchey.com/products/zip-wallet-perforated-ginger

Hi @annescafaro ,
This is Theodore from PageFly - Shopify Page Builder App.

Your Klaviyo Back In Stock (BIS) isn’t showing available inventory for a product even though you added stock. Here’s why:

  • Inventory Not Updated: Double-check inventory levels in Shopify admin.
  • Klaviyo BIS Code Issue: Ensure the code is added correctly to theme.liquid (refer to Klaviyo’s instructions).
  • Cache Issues: Clear cache on your browser and potentially Shopify’s cache (using an app or contacting support).
  • Klaviyo BIS Configuration: Verify settings in Klaviyo (active integration, linked product, trigger based on inventory).
  • Theme Compatibility: Check your theme’s documentation for Klaviyo BIS compatibility issues.

Best regards,
Theodore | PageFly

Hi,

Are you using any app?