"customer_code","first_name","last_name","company_name","balance","sex","date_of_birth","year_to_date","postal_address1","postal_address2","postal_suburb","postal_city","postal_postcode","postal_state","postal_country_id","physical_address1","physical_address2","physical_suburb","physical_city","physical_postcode","physical_state","physical_country_id","phone","fax","mobile","website","email","customer_group_name","note","custom_field_1","custom_field_2","custom_field_3","custom_field_4","do_not_email"