We are contemplating using a user attribute as a drill filter in Webi. The user attribute is stored on the BOBJ server post 4.0SP3, which can be retrived through @variable function into universe apparently. (http://scn.sap.com/community/bi-platform/blog/2012/07/05/user-attribute-mapping-in-bi4)
Apparently the @variable values were able to displayed in Webi (http://www.dallasmarks.org/blog/2008/11/tips-and-tricks-using-variable-functions-in-the-universe/)
Our data source is BW bex query, although they are migrated over using UNV OLAP universes.
Tried <expression> syntax in the UNV universe using @Variable('BOUSER'). In every case, the Webi report complained of database error.
Please guide the correct syntax to create a dimension in universe to display the @Varible values in Webi.
Thanks.