update_post_meta() not working when used with WordPress action

I am trying to update the field when post status changes to published. it is getting the values properly but not updating ..when i check the what update field is returning -it shows some number …please help .. not sure whether i should use this along with transition_post_status

Update – I have tried below hooks // the action is getting triggered but the fields are not updating

1. publish //works but no update is happening

2. save_post && save_post_l //works but no update is happening.

add_action('transition_post_status', 'updated_to_publish', 10, 3);
function updated_to_publish($new_status, $old_status, $post)
{

    if (($new_status == 'publish') && ($post->post_type == 'l')) {

        $post_id = $post->ID;

        if (get_field('advanced_option_edit_seo', $post_id)) {

            if (defined('WPSEO_VERSION')) {

                $metatitle = get_field('seo_title', $post_id);
                $metadesc = get_field('seo_meta_description', $post_id);
                $metakeywords = get_field('seo_keyword', $post_id);

                update_post_meta($post_id, '_yoast_wpseo_title', $metatitle );
                update_post_meta($post_id, '_yoast_wpseo_metadesc', $metadesc );
                update_post_meta($post_id, '_yoast_wpseo_focuskw', $metakeywords);

            }

        }

    } else {
        return;
    }

}