Need to Post Condition value (Inventoried) in to separate G/L in MIRO

Hi Guys,

   The below is my client requirement. Please suggest how to ful fill the requirement.

   Requirement :  Non deductible  CST value should be post seperate G/L in MIRO as like Freight value how it is posting. Freight value it is adding to stock Inventory in MIGO and seperate G/L account in MIRO ... Like client needs to post CST Value ( Non deductable) need to post stock account in MIGO and Need to post seperate G/L account in MIRO.

                 Client need to achieve this requirement from tax procedure or MM Procedure. They are not given any restriction to do from Tax procedure or MM pricing procedure. But they need to achieve this requirement.

I have tried with accurals but system adding in to stock account while doing MIGO but in MIRO the value not showing.

entries getting  like  GR/IR - 100

                              CST  - 2

                               Inv - 102

but while doing MIRO only showing 100 and not showing 102 ..

Please advise