For articles marked for flexible pricing in the article database, the used price at the time of the booking is stored in Reservations on page "Prices". This price is only fixed and documented for this reservation. This setting is used, if the price for a certain day changes but has not been agreed upon beforehand. With this option you make sure that the arranged price is used for the reservation. Articles used here should be set as fixed price articles on page "Details" (Input allowed Price: "N" and Reserv. Price Tab: "Y" or "Z").