MEMBERNAME
This function returns the unique name of an element.
Syntax
=MEMBERNAME("data_connection","cube",
               "dimension", "element_name")
Example
This function returns 
 
	     [PRODUCT].[All Tires].[Car Tires All
            Season]:=MEMBERNAME("BestPracticesOLAP","Sales","[Product]","
[Car tires all season]")