ProductSchema
interface ProductSchema {
item_id: string;
item_name: string;
affiliation?: string;
coupon?: string;
currency?: string;
discount?: number;
index?: number;
item_brand?: string;
item_category?: string;
item_category2?: string;
item_category3?: string;
item_category4?: string;
item_category5?: string;
item_list_id?: string;
item_list_name?: string;
item_variant?: string;
location_id?: string;
price?: number;
quantity?: number;
}Source: index.ts:12
Product payload carried by commerce analytics events. Field names follow the GA4 item schema (item_id, item_name, price).