You can drill through an OLAP report to the underlying detail data
only after you make the detail data available to the information map.
In order for an information map to produce a report that has drill-through
capabilities, an option must first be set in the information map.
For an existing information
map, open the information map, right-click it, and then select
Properties from
its drop-down menu. Select the
Allow drill-through to
detail data check box on the
Definition tab
in the
Information Map Properties dialog
box. This check box is displayed only when a drill-through table is
specified for the cube that the OLAP information map is using as its
data source.
Information Map Properties