Solution : https://service.sap.com/sap/support/notes/526206 (SAP Service marketplace login required)
Key words : 
business information system, cost element report, line item report, hierarchy report, note summarizes, consulting notes, terms reportwriter, drilldown reporting, rkpep0 reason, related notes
Related Notes : 
       
| 568313 | CJ20N, CN22: General layout for plan/actual comparison | 
| 524498 | PS-IS: Excluding network from assigned value | 
| 495088 | Evaluation of archives in the Project Information System | 
| 494487 | Project System: Consulting notes | 
| 454509 | Customer enhancement for drilldown reports in Project System | 
| 434808 | PS line itm reports:Changng no.of records t.b.selectd as max | 
| 429055 | PSIS: Versions in drilldown reports | 
| 422987 | PSIS: Jumping from drilldown report to cost element report | 
| 420453 | Duplicate values in cost element report from the archive | 
| 396474 | Line item report in PS: Classic ALV optional | 
| 381774 | Documentation test program BEBDTEST | 
| 377796 | PS-IS: Hierarchy structure for alternative views | 
| 327081 | Costs/payments of deleted activities in project reports | 
| 318500 | PS-IS: branching to line items: too many periods | 
| 310345 | PS-IS:Only open commitmts via rep.-rep.interfc | 
| 186899 | Report/report interface / Goto line item report | 
| 81346 | Line item and cost element report authorizations | 
| 60147 | LDB PSJ: Performance of settlement/surcharges | 
| 53454 | PS cost element reports for PSPID and POSID | 
| 51984 | Rules for report-report interface in PS | 
| 51971 | Hierarchy reports: Displaying actual costs after settlement |