If you receive such error it means that in the past you already had 2 or more bookings at the same time and the system can't change the value for the smaller one because of inner conflict, by default that number can be changed only for the bigger number. | If you receive such error it means that in the past you already had 2 or more bookings at the same time and the system can't change the value for the smaller one because of inner conflict, by default that number can be changed only for the bigger number. |