The customer requires a flexible selection of cost elements when starting a Report Painter report. How do you define the report?

A row model defines the structure and content of report rows, often using key figures, but it does not provide a flexible selection mechanism for cost elements at runtime.

Variables in Report Painter reports allow users to enter selection criteria, such as a cost element group, at the time the report is executed. This provides the desired flexibility for the customer to dynamically choose which cost elements are included in their report.

While a predefined report template might exist, it defines the overall structure, not necessarily the flexible runtime selection of specific master data like cost elements.

A variable for a report variant would allow selection of a predefined set of report parameters, but not direct flexible selection of cost elements themselves within a single report run.