Untitled

add_filter('woocommerce_email_subject_marketking_new_announcement_email', function($subject, $object, $email) {

    if (!empty($email->announcementid)) {

        $title = get_the_title($email->announcementid);

        if (!empty($title)) {

            return $title;

        }

    }

    return $subject;

}, 10, 3);
add_filter('woocommerce_email_heading_marketking_new_announcement_email', function($subject, $object, $email) {

    if (!empty($email->announcementid)) {

        $title = get_the_title($email->announcementid);

        if (!empty($title)) {

            return $title;

        }

    }

    return $subject;

}, 10, 3);