> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://doc.common-services.com/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# Missing EAN code for products

When exporting products, you may see:

> EAN is missing, References: \[demo_1, demo_2]

The list shows references with an empty EAN field. Find each product via PrestaShop search.

Example of an empty EAN field:

![PrestaShop CDiscount missing EAN](https://storage.crisp.chat/users/helpdesk/website/-/3/f/a/8/3fa8ee645cd13200/prestashop-cdiscount-code-ean-_1upfl7i.jpg)

Same rule for combinations: each combination needs its own unique EAN.

See: [Validate your catalog structure](https://doc.common-services.com/en/article/validate-your-catalog-structure-cdiscount-1trq16m/)  
EAN policy (Normal / Permissive): [Settings](https://doc.common-services.com/en/article/settings-18jvr8w/)