Relevant data fields
The fields most useful for enrichment are category_1/2/3, breadcrumbs, primary_image_url, additional_images, description, summary, highlights, and ingredients_formatted — largely drawn from the Product Info and Media groups in our field reference, plus the Ingredients group for personal care categories where ingredient transparency matters to shoppers.
how_to_use and warranty_information from the Usage & Other group are also commonly missing from third-party listings and are straightforward to backfill using the same matching approach.