if i want to create a report based on a business view and in the reports i must create a parameter  ( allow différents values) when  i can extract the data.
 my problem is when i create my reports i find that's the link between the parameters not exist for exemple  i have too parameter (store, Item)  and i must extract the data from business view and to verify if the data is the better.

i creates  the formula field for two parameters  and a parameter field.