Note the following limitations.
PPM calculates only dimensions with less than a critical number of values in a query. Due to the risk of memory overflow, dimensions with more values are not calculated.
Normally there is no reason to analyze such dimensions. The typical use case is that of a search dimension, such as a dimension holding an order number, with one distinct value for each process instance.
Dimension values that only occur in a few process instances are ignored in the calculation.
The maximal number of root causes that is returned to the client can be specified by the client as part of the query. If nothing is specified, PPM returns up to 50 results, consisting of the top 25 causes that promote the symptom and the top 25 causes that inhibit the symptom.