> ## 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).

# Marketplaces > Amazon > Configuration > Mappings

Use this tab to map your store's attribute values (such as sizes, colors, and materials) to Amazon's standardized target values for each product category.

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### Value Mapping Tools

* **+ Add a custom value:** Click this button in the top right corner to create custom mapping rules or define custom attribute values.
* **Copy Value:** Copies the original store attribute value directly into the Amazon mapping field.
* **All Matching Value:** Automatically matches and assigns identical store values to Amazon's standard values across all rows.
* **Copy Only Number:** Extracts and copies only the numeric digits from store attribute fields into the mapping field.

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### Mapping Store Attributes

* **Category Navigation:** Mappings are grouped by Amazon Product Universe and Product Type.
* **Dropdown Value Mapping:** Map store options (such as size values `S`, `M`, `L`, `XL`) to Amazon's official accepted attributes using the dropdown menus.
* **Custom & Free-Text Mappings:** For attributes without pre-defined dropdown lists, click **use attribute value** or **Enter and map a new value** to enter custom text or map store features directly.