ASSD - Ho(s)tel Management Software PMS 3

New option "Z" in the article database. Here, the automatic balance is also carried out if the booked positions of the respective article add to zero. If a booking with this article has been cancelled, the main invoice which is still open is corrected. On the other hand, this article cannot be recorded on the main invoice, as the article is balanced again straight away. That is why this option can only be used if the article is always billed via an own invoice (e.g. prepayments), too.