Copying pricing date from sales order to sales order

Hi,

I am creating sales order with reference to a old sales order. For example if i am creating a new sales order with reference to sales order A which has pricing date as 27.05.2013 and if i am creating a new sales order on 28.01.2014.

System should populate pricing date as 28.01.2014 but not 27.05.2013.

How to configure this. Do i need to go for some ABAP coding??

Regards,

Udai