Here is an easy way to change the text and url of yoast breadcrumb for the parent. Usually this is linking to archive of the post type. My example is for singular but you can adapt it to suit your use case.
add_filter('wpseo_breadcrumb_links', 'yoast_change_breadcrumbs'); function yoast_change_breadcrumbs($links) { //calendar-events custom post type if(is_singular('calendar-events')) { //note the index $links[1] = array('text' => 'Kalender', 'url' => '/kalender/', 'allow_html' => 1); } return $links; }