Total value in contract is showing wrong value while creating from Rfx response(pricing conditions)

Dear SRM Expert ,

We are calculating complex pricing based on conditions types maintained in the Rfx response from vendor side and

total value (For example Rs. 5336) is calculating correctly in the Rfx response screen.But once we are trying to create a contract from that

, total value of that contract is showing wrong data(only base price i.e Rs. 4000 no conditions related pricing).However,all the conditions are properly passed to

the contract from the Rfx response.I checked with SAP via OSS and they said that its standard and to calculate the total value in contract

we need to recalculate  this again.Can you please provide the required  BADI name and sample code to implement this.

Thanks