In Booking manager system you can setup a discount to be calculated automatically according to the set Reservation period. Such a discount is useful in defining early booking in advance.
The Discount manager can be found in Setup (1.) > Discount types (2.).
Press New (1.) to open a new discount and give the Discount name (2.) and press Apply (3.).
Now the discount has appeared in the list on the left so you click on it (1.). Next set the Trigger type to Reservation period (2.). Next set the Order period Valid from (3.) and Valid until dates (4.) of the charter then set the Default value of the discount (5.) and press Apply (6.).
This example gives you the Early booking discount that will be offered only from 01.10.2012 till 31.01.2013.
Additional flexibility to creating such a discount is given with two features that can be found in Advanced section (1.)
Here if you place a check on Exclude other discounts (2.) and remove the check from Affected by maximum (3.) and press Apply (4.) you will get a discount that will not apply other discounts and can ignore the maximum discount set in Reservation settings (if required) that will be applied only in the timeframe set for the Reservation period.
Now this name of the option can be translated by pressing the flag. After you pressed the flag button a list of flags repesenting their respective languages will appear. The list consists of 18 languages. The red ones are not translated.
For more details please refer to Translating the Options and Discounts