Amazon Announces Deprecation of Catalog Items v0 API: What You Need to Know

Jacob Heinz

Jacob Heinz

— 2 min read
Developers in office with Amazon logos and cloud icons

Effective March 31, 2026, Amazon will officially deprecate the Catalog Items v0 API, impacting sellers who utilize this service. This change necessitates a migration to the newer Catalog Items v2022-04-01 API to ensure continued functionality and avoid service disruptions.

Key Takeaways

  • The Catalog Items v0 API will be deprecated on March 31, 2026.
  • Sellers must migrate to the Catalog Items v2022-04-01 API to maintain service.
  • The new API includes enhanced features, including the classifications query parameter.

Overview of the Deprecation

The Catalog Items v0 API has been a crucial tool for sellers on Amazon, allowing them to access product information and manage their listings effectively. However, as technology evolves, Amazon is phasing out older APIs to streamline operations and improve user experience.

Starting from the deprecation date, the listCatalogCategories operation will no longer be available. This means that any applications relying on the Catalog Items v0 API will cease to function unless they are updated to the newer version.

Migration to Catalog Items v2022-04-01 API

Sellers and developers are urged to take immediate action to migrate their applications to the Catalog Items v2022-04-01 API. Here are the steps to ensure a smooth transition:

  1. Assess Current Usage: Identify all applications that currently utilize the Catalog Items v0 API.
  2. Plan Migration: Develop a migration plan that includes timelines and resource allocation.
  3. Implement Changes: Update your applications to use the new API endpoints and features.
  4. Test Thoroughly: Conduct extensive testing to ensure that the new API meets your needs and functions correctly.
  5. Monitor Performance: After migration, keep an eye on application performance to catch any issues early.

New Features in Catalog Items v2022-04-01 API

The Catalog Items v2022-04-01 API introduces several new features that enhance its functionality:

  • Classifications Query Parameter: This new option allows users to browse classification trees assigned to an ASIN, replacing the deprecated MWS GetProductCategoriesForSKU and GetProductCategoriesForASIN operations.
  • Improved Data Access: The new API provides better access to product data, making it easier for sellers to manage their inventories and listings.

Conclusion

The deprecation of the Catalog Items v0 API marks a significant shift for Amazon sellers. By migrating to the Catalog Items v2022-04-01 API, sellers can take advantage of improved features and ensure their applications remain operational. It is crucial for developers to act promptly to avoid any disruptions in service as the deadline approaches.

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