USERNAME ( ) : USERNAME() : Return current Tableau Server/Cloud user

ISMEMBEROF ( ): ISMEMBEROF('Sales') : Check group membership

FULLNAME() : FULLNAME() : Display full user name

TODAY( ) filter: TODAY( )=DATE([Login Date]) : Row-level security by date

PASSWORD( ): PASSWORD('secret') : Encrypt string (Tableau Prep)

ROW LEVEL SECURITY: User filter with security table : Restrict data per user