Google Breadcrumbs Schema Markup for Grads24

 add_filter('wpseo_breadcrumb_single_link', function($link_output, $link) {

    // If the link is the current item, ensure it has an "item" URL

    if (isset($link['url']) && empty($link['url'])) {

        $link['url'] = get_permalink(); // Use the current page URL

    }

    return $link_output;

}, 10, 2);

add_filter('wpseo_schema_breadcrumb', function($data) {

    // Ensure the current page has an "item" URL in schema

    $breadcrumbs = $data['itemListElement'];

    foreach ($breadcrumbs as $index => $breadcrumb) {

        if (!isset($breadcrumb['item']) || empty($breadcrumb['item'])) {

            $breadcrumbs[$index]['item'] = get_permalink();

        }

    }

    $data['itemListElement'] = $breadcrumbs;

    return $data;

});