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# Marketplaces > Cdiscount > Configuration > Mappings - Cdiscount Flux

Mappings help you connect your store's product values with Cdiscount's official values. 

Sometimes, your store uses one name for a detail, but the marketplace uses another, even though they mean the exact same thing. For example, a T-shirt could be of size L in your Shop and of size Large in the marketplace.
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### How to Map Your Data

When you open this tab, you will see your product details split into columns:

* **Left Side (Your Store Value):** Displays the attributes and values currently inside your PrestaShop store (such as your specific color names or size letters).
* **Right Side (Marketplace Value):** Provides a dropdown menu with Cdiscount's official matching options.

To create a link, simply look at the value on the left and choose the correct matching value from the dropdown menu on the right.

![](https://storage.crisp.chat/users/helpdesk/website/-/3/f/a/8/3fa8ee645cd13200/screenshot5773_1r98j50.jpg)