Solution : https://service.sap.com/sap/support/notes/203109 (SAP Service marketplace login required)
Key words :
menu path 'edit --> convert --> convert, additional key words drilldown reporting, monitor transaction [refer, solution refer, longer period, converted correctly, correction abap, correction program, program error, maintained
Related Notes :
| 109713 | Drilldown rep: conversion of reports with headers |