How to set variable value in one add_action and use in another add_action

Hello

I have following code:

add_action("save_post", function ($post_ID, $post, $update) {
   global $last_booking_id;
if (!$update &&  class_exists("Flamingo_Inbound_Message") &&  (Flamingo_Inbound_Message::post_type === $post->post_type) ) {
   $last_booking_id = 'Last Booking Id '.$post_ID;
    // Set last submitted post in $last_booking_id
}
}, 10, 3);

add_action('wpcf7_mail_sent', function ($cf7) {
	print_r($last_booking_id);
        // $last_booking_id returns nothing here. 
	die('Die inside CF Mail Sent');
}, 12, 1);

I am using Contact form 7 with flamingo plugin. I am getting last submitted post id in save_post action.

Can any body tell me how to use $last_booking_id value in wpcf7_mail_sent action function.

Thank you

• This topic was modified 5 years, 4 months ago by Sajid Manzoor.