Data Service Data Aggregation (API 1.3.1 and EnterpriseOne Tools 9.2.0.2)
Data service data aggregation provides the capability to request an aggregation of values
            in a data service request. To perform aggregation functions over records from tables or
            business views, you must add both dataservice and
                dataServiceAggregation to the used capabilities list before using
            the aggregation APIs.
The following aggregation information is sent in the DataRequest object attribute:
aggregation, AggregationInfo object
You can also include a query in a data service data aggregation. See Query with Aggregation in this guide for more information.