lukasprelovsky

add_filter( 'woocommerce_email_attachments', 'mbcreation_woocommerce_attachments', 10, 3 );


function mbcreation_woocommerce_attachments($attachments, $email_id, $email_object){

	if( $email_id === 'customer_on_hold_order'){

		$attachments[] = get_attached_file( 612 );

	}