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# Mappings Tab - Amazon Marketplace Plus

![PrestaShop Amazon Marketplace Mappings tab](https://storage.crisp.chat/users/helpdesk/website/-/3/f/a/8/3fa8ee645cd13200/prestashop-amazon-marketplace-_usgk9y.jpg)

Mappings are used for [product creation](https://doc.common-services.com/en/article/creating-new-products-amazon-marketplace-plus-5evxbs/).

Once your profiles are configured, some fields may still require a manual match between your PrestaShop values and the values expected by Amazon. This is what we call *mapping*.

|| Since version **5.4.03**, the **Mappings** tab is only used for fields that require constrained values on Amazon. If the **Mappings** tab does not display any rows, it means that the profiles do not contain values that need to be mapped with constrained values on Amazon.

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## Constrained Mapping

For these fields, Amazon requires a specific value from a predefined list.  
You simply need to select the correct value from the dropdown.

👉 You can update the list of valid values from the [Tools tab](https://doc.common-services.com/en/article/tools-tab-amazon-marketplace-plus-1522fro/).

Example of a constrained mapping:

![PrestaShop Amazon Marketplace mapping with constraint](https://storage.crisp.chat/users/helpdesk/website/-/3/f/a/8/3fa8ee645cd13200/screenshot1881_1ox6mbh.jpg)