Reply To: Update custom post title with ACF Fields

• Josh White

• March 22, 2022 at 4:31 pm

Here’s the answer:

function update_contacts_title($value, $post_id, $field) {

if( have_rows('contact_info') ):
    while( have_rows('contact_info') ): the_row(); 

        $first_name = get_sub_field('first_name', $post_id);
        $last_name = get_sub_field('last_name', $post_id);
        $title = $first_name . '-' . $last_name;
        $slug = sanitize_title( $title );

    endwhile;
endif;

    $postdata = array(
        'ID'          => $post_id,
        'post_title'  => $title,
        'post_type'   => 'contacts',
        'post_name'   => $slug
    );

    wp_update_post( $postdata );
    return $value;

}
add_filter('acf/update_value/name=last_name', 'update_contacts_title', 10, 3);