A subreport is a report definition that is inserted in the main report definition. The main report definition focuses on the central business object of the selection step you are currently working on. The subreport to be defined focuses on an associated business object. For example, the main report may focus on the business object Property, while the subreport focuses on the associated business object Visitors. In a report definition, it is possible to define subreports down to a maximum of 10 levels.