An aggregation level indicates the degree of detail to which the data of the underlying InfoCube is compressed.

An aggregation level must be assigned to each component of an aggregate (characteristics and navigation attributes). You can choose one of the following aggregation levels:

• All characteristic values ("*"): The data is grouped by all the values of the characteristic or navigation attribute.
• Hierarchy level ("H"): The data is grouped by the hierarchy level node.
• Fixed value (‘F’): The data is filled according to a single value.