Get number entry

For example, i have have sent a form and lead#1217 has been created.
As i call a shortcode when i send the form, i would like to know if it is possible to get 1217 in database when sending ?

i assume the post title lead#1217 is created after that the form is sent so i can’t do :
$args = array(
‘numberposts’ => 1,
‘post_type’ => ‘elementor_lead’
);

$latest_lead = get_posts( $args );

But i suppose i can get the counter value 1216 used to generate the post title lead#1217

may be should i use ?
$cpt= $latest_lead[0]->ID +1 ;