Filter for update tracking information when add tracking from orders list and single order page

tracking_info_args.php

add_filter('tracking_info_args','tracking_info_args_fun',10,2);
function tracking_info_args_fun($args,$order_id){
	if($args['tracking_provider'] == 'australia-post'){				
		$args['tracking_number'] = '0003006985494006020994';
	}
	return $args;
}