Update: April updates to listing attribute usage and enumeration values

Effective April 27, 2026, Amazon will update the attribute usage and enumeration values of numerous product types across marketplaces. These adjustments eliminate redundant attributes and improve the curation of attributes and enumeration values that apply to the corresponding product types.

For a complete list of metadata changes and affected marketplaces, refer to SP-API product metadata changes.

Who is affected?

Both private and public developers using the Listings Items API and JSON_LISTINGS_FEED feed type to create and edit products with offers are affected by this change. Product-only listings and XSD/XML feed uploads are not affected by this change.

What action is required?

This change takes effect when you create or edit listings for products with offers. It requires you to provide values for the newly added attributes with required usage. For attributes with optional usage, you can choose to provide values. You can choose to use enumeration from the new list in the dropdown values for attributes if the new enumeration is more relevant to the product you are selling.