Edit template

Roles: name (product title), sku (part number), price, or attribute (everything else). Exactly one name / sku / price column is used per export; extra ones become attributes. A column keyed description maps to the WooCommerce/Shopify description.
Extra flags (any order): number or text, required / optional, and unit:mm — they sharpen the extraction prompt and the per-field confidence score, e.g. Weight (kg) | attribute | number | required | unit:kg.