EPM duplicate values

By mistaske few dimension member values are same in entity and accounts.For example 1000 dimension member values is used by entity and accounts.

It is mistaken defined.Lot of data is already loaded,hence cannot be deleted.

So while defining EPM report with retrieve formula...few of these lines where 1000 values is specified getting error message of duplicate members.

While calling the values by EPMretrieve..how to make sure that I am calling the 1000 value only for account dimension.

How to make sure that account dimension values are retrieved properly for this duplicate member and no error is shown.