Overview

In early 2024 Amazon refreshed the Catalog Items v2022‑04‑01 endpoint, injecting a range of previously unavailable attributes into the item summary payload. The change brings the REST‑based catalog service into line with the older MWS Catalog Items feed, giving sellers richer product metadata for each ASIN. Any automation that pulls catalog data now needs to be updated to capture the new fields, or risk missing critical information such as manufacturer details or precise release dates.

Key Points

• Contributor identification — New fields itemContributor and itemContributorRole disclose who is responsible for the product (for example, “Amazon | Brand”).
• Manufacturer visibility — The itemManufacturer attribute surfaces the original maker, enabling more accurate brand‑level reporting.
• Package count — itemPackageQuantity tells how many units are shipped together, such as “2 packs” for a multi‑pack supplement.
• Release‑date granularity — A trio of attributes (itemReleaseDate, itemReleaseDatePrecision, itemReleaseDateDescription) conveys the official launch date and how precise that date is (day, month, or year).
• Original market entry — itemReleaseDateOriginal together with its precision sub‑fields records when the product first appeared on the market, useful for vintage or collectible listings.
• MWS parity — Adding these fields aligns the REST API with the legacy MWS Catalog Items service, simplifying data handling for sellers that operate across both interfaces.

How the Updated Catalog Items API Works

1. Issue the GET request — A seller calls the endpoint https://sellingpartnerapi-na.amazon.com/catalog/v2022-04-01/items and includes one or more ASINs in the identifiers query string.
   Example: GET …/items?identifiers=ASIN:B07FZ8S74R,ASIN:B08N5WRWNW returns summary information for two distinct products.