Non-Aggregating Attributes
If you set an Essbase attribute member as non-aggregating, then it will not be rolled up.
Non-aggregating attributes are supported only in hybrid mode.
Non-aggregating attributes enable your analyses to benefit from the association of a cross-dimensional attribute. You can pivot the attribute across the base dimension to identify valid combinations, while avoiding the performance hit of dynamic aggregation.
Non-aggregating attributes only present values when the base dimension member is explicitly tagged as non-aggregating. If the base member is not tagged, then the top member in the attribute dimension also needs to be included in the query.
Mixing non-aggregating and standard attribute dimensions on the same grid is not supported. If mixed, all the attribute dimensions on the grid will behave as non-aggregating attributes.