
The OpenAI (ChatGPT) feed now writes the field names from the OpenAI product spec instead of Google Shopping names: item_id, url, image_url, additional_image_urls, group_id and product_category.
Variants are described the way OpenAI expects: listing_has_variations says whether a product has variants and variant_dict lists the options of each variant. The feed also sends seller_url, and new additional fields cover the store country, return policy, return deadline, shipping price and digital products.
If you already registered the feed with OpenAI, open the feed preview and check the new column names.