Conversion of dimension deportment does not exist

Dear All,

Can anybody give resolution for the mentioned issue

While creating Intercompany sales order, the financial dimensions at the header level of SO has been copied to the Intercompany PO,but we need different dimensions values in SO and PO

Currently system updates the dimension values for both companies when user makes a change in any of the company.

Your valuable suggestion on this is appreciated.

Warm Regards