Meta Key Editor Field Data Type Default _product_type Product Type dropdown String "traditional" _product_price Price input Float Empty/0 _product_tax_ids Tax Rates checkboxes Array Empty array _product_company_index Merchant Company dropdown Integer _product_invoice_description Product Description (Invoice) textarea String Empty _product_internal_notes Internal Product Notes textarea String Empty _digital_product_file_path Digital file upload (Pro-only) String Empty _digital_product_file_name Digital file upload (Pro-only) String Empty _digital_product_file_url Digital file upload (Pro-only) String (URL) Empty _product_clients Portal client assignment (Portal plugin) Array Empty array