The KCSmartHome app can be used to access your holiday accommodation. The relevant holiday park will provide further information on its use.
The app provides you with easy access to the accommodation. After entering the reservation and PIN code, you can open the lock via your phone. If the park uses NFC stickers, you only need to hold your phone against the lock afterwards.
More information about Koole Controls solution can be found here: https://koolecontrols.nl/en/vakantieparken/.