dealhandler.php

См. документацию.

<?php
 
namespace Bitrix\Calendar\Integration\Crm;
 
use Bitrix\Crm\Service\Container;
use Bitrix\Main\Loader;
 
class DealHandler
{
    public static function getDeal(int $dealId): mixed
    {
        if (Loader::includeModule('crm'))
        {
            $entityBroker = Container::getInstance()->getEntityBroker(\CCrmOwnerType::Deal);
 
            return $entityBroker?->getById($dealId);
        }
 
        return null;
    }
}