CRM_COPY_BADI item method..

Hi,

We have requirement to create follow on  order based on Service order. User will click on follow

on button and select sold to & item order type and save.

In the background, we need to change date parameter ( Rental date etc..)

I looked at the system and found 'CRM_COPY_BADI' which triers on this event however i could not find method which gets called with the each items is being copied because we need to change the data in item then in header.

Please let me know if any method is there where i can find the dates and manipulate the data.

Thanks!