Redirect WordPress user from LearnDash course page to first lesson page

functions.php

<?php

add_action('template_redirect', function () {
	if (is_user_logged_in()) {
		$q_object = get_queried_object();
		if (($q_object) && (is_a($q_object, 'WP_Post')) && ($q_object->post_type == 'sfwd-courses')) {
			if (sfwd_lms_has_access($q_object->ID)) {
				$steps = learndash_get_course_steps($q_object->ID);
				if (count($steps)) {
					wp_redirect(get_permalink($steps[0]));
					die();
				}
			}
		}
	}
}

, 1);

?>