To Change PRD GL a/c for PRD a/c during GR

Question

Experts,
As you aware, When I perform GR for PO for material (with S price), system will post following account
Stock a/c = +(with stock price)
GR/IR a/c = - (with PO total price)
PRD = + or -ve(difference of above)
Now I want to change the normal PRD a/c for a PO GR created for inter-company so that PRD a/c for external PO and inter-company can be seen separately.
I tried in OMJJ-account grouping for movement type, with account modifier but the system is not allowing as the field is grey.
I though of going for split valuation....but now I cannot do as the material is having so many open transactions and cannot do that.
Is there any user exit to replace this GL a/c as per my wish before posting accounting document?
Your help is highly appreciated.

Answer 1

Hi,
Please follow the steps which have been described by Milind and Venkata. if still you pursue, check the OME9 settings. select the account assgt. Category which you are using in PR. Check the account modification there. Now after checking it, go to OBYC > GBB and check whether correct GL and Valuation Class have been maintained there for that material.
I hope this should help you.
Regards,
Jigar