Purchase order header conditions amount adding in Net order value

Dear friends,

Our client has following requirement.

---In Purchase order ,Header conditions related to delivery costs are using.

--Currently when we add the header condition,that amount is not adding to the Net order value and not adding to the total value in the PO print document.But proportionaly distributing to the line items.

--Because of this two problems --one is not adding to net order so not considered for release strategy,

second--as it is not adding in the net order value,header condition amount also is not coming in the total value in the print out.

--Currently, this header amount is splitting and posting seperate line item for GR/IR clearing act in MIGO and MIRO..

I have removed the Statistical tick and accrual tick in IMG, then header amount is adding to the Net order value and adding in the total value in the PO print. But in MIGO/MIRO, This amount is adding to the GR/IR clearing act ,instead of seperate GR/IR line item in MIGO/MIRO documents, But client wants the postings shall be made similar to previous one i.e different line items.

I have checked with removing only Stastical key and not removing the accrual key.But header condition is not adding to Net order value. I have searched for User exits/BAdis,suitable are not found.

How the Header condition amount can be added to the Net order value without removing the Statistical key in IMG.Are there any User exit/BAdis,

Please suggest.

Regards,

Magana