<?php
add_hook('OrderPaid', 1, function($vars) {
    $command = 'OpenTicket';
    $postData = array(
    'deptid' => '1',
    'subject' => 'New Service Installation',
    'message' => 'Hello, ',
    'clientid' => 44,
    'priority' => 'Medium',
    'markdown' => true,
);

$results = localAPI($command, $postData, $adminUsername);

print_r($results);
});