Rules are usually used in reports, and can be applied to any InfoCube which has as a dimension, the entity on which the Rule is defined. The Rule calculation occurs on the fly, meaning that the results of the algorithms are not stored in the database. If the view on the InfoCube is at a summary level, the rule formulas are calculated after data has been aggregated to the required view level. This allows you to correctly calculate percentages and other fields that cannot be summed. This approach is similar to the calculation logic of Column Algorithms.
To apply a Rule in a Layout, click the InfoCube on which you want the Rule to be applied, go to the Functions tab and select the Rule name.
The Layout must meet the following requirements