wordpress - Include additional fields in Woocommerce email -

i have woocommerce site. email notification website admin receives when new order placed displays 'email:' , 'tel: data under 'customer details' heading.

i add standard field (company name) customer has filled in @ checkout phase appear in email - how do this?

thanks

add hooks added in woocommerce 2.3

function so_229971110_add_meta_to_email( $order, $sent_to_admin, $plain_text ){    $prodmetaa = get_post_meta($order->id, "_company_name" , true);    echo "company name: " . $prodmetaa; } add_action( 'woocommerce_email_customer_details', 'so_229971110_add_meta_to_email', 20, 3 );