Simple Aggregation Level 

The following example demonstrates how the system works when a key figure value is changed (manually or automatically).

Assuming there is an InfoCube IC with the characteristics product, product group, version and year, along with the key figure revenue. The aggregation level ALVL includes the same objects with the exception of the characteristic, product.

Fact Table of the InfoCube IC

Product	Product Group	Version	Year	Revenue
P1	PG1	V1	2005	10
P2	PG1	V1	2005	20
P3	PG2	V1	2005	42

The key figure revenue includes the database aggregation SUM. Accordingly, we get the following result when the transaction data for the aggregation level ALVL is read from the database without restriction:

Aggregation Level ALVL (Key Figure Aggregated on the Database Level)

Product Group	Version	Year	Revenue
PG1	V1	2005	30
PG2	V1	2005	42

If you have changed the revenue from 30 to 40 and is saved as a new value, the system writes a new record with the difference of the key figure value to the fact table of the InfoCube IC:

Delta Record in the Fact Table of the InfoCube IC

Product	Product Group	Version	Year	Revenue
#	PG1	V1	2005	10

In this type of delta records, all characteristics of the InfoCube that are not included in the aggregation level get the initial value (not assigned: #). (Here we are assuming that no derivations were used. For more information on this concept, see Characteristic Relationships.)