When a front end tool wants to set values for “Ready for Input” BEx Variable via an MDX query, it will use the SAP specific MDX statement: “SAP VARIABLES”.
Here’s the syntax for the SAP VARIABLES clause:
SAP VARIABLES <sap_variables> INCLUDING|EXCLUDING <unique_member_name>
Note: I am working on a project involving OBIEE reporting on top of SAP BW BEx Queries. OBIEE queries are sent to BW via the MDX query language.