MIGO-Plnt restriction in ECC

Hi,

I have few goods movement derived roles with MIGO,ME2V transactions.

which have been restricted by plant. In org level I have populated with plant value.

we do have purchase org, purchasing group as * in org.level. but there is no relation between purch.group and plant.

I have assigned this goods movement role to a user . actually user should able to accees that perticular plant data. but he is able to access purchase orders in other plants as well.that means -ve testing is failed.

when I traced , what ever the auth,object and values are showing in trace report.. those objects are laredy existing in role.

can we restrict plant in MIGO ? can any one help me in this regard.

this is an urjent requirement .

Thanks in advance.