The guest has already skied in a group and wants to upgrade his course to a longer course. The price for this extension is derived from the difference between the course already purchased and the course to which it is to be increased. In order to calculate the price automatically, right click on the longer course (to which the increase so to speak is made) and select Credit ticket in the menu, which appears.
The ticket number of the guest's original ticket must be entered in the next window. Once the start date of the new course has been confirmed, WS Skischule sets the start date of the new course on the date following the end date of the original course and the duration of the days remaining, together with the prices difference as the sales price. The personal details are automatically loaded into the sales dialogue.
WARNING: When tickets, which have already been extended, are further extended, this method calculates afresh the correct difference in price, but the duration of the new course must be adjusted manually as a number of days.