Is it possible to change the Transaction Type of an already booked Order Type?
In this article is elaborated on the consequences of changing the Transaction Type of an already booked Order Type, which is in principle possible.
Changing the value in the field 'Transaction Type' (1) of an already booked Order Type (GeneralSettings > Ctrl. Values Booking > Order Type) has the disadvantage that it would change all past bookings. It would be better to create a new Order Type with the preferred Transaction Type and to lock (2) the old Order Type.