Solution : https://service.sap.com/sap/support/notes/51984 (SAP Service marketplace login required)
Key words : 
sgrw_docu_cons_notesgrw_om sgrw_ps sgrw_pc sgrw_sl sgrw_pca sgrw_ec sgrw_lis reason, gs004 ----- supportguide 20010208103353 -----reportwriter, important communications structures, cursor position determines, cost element report, journal entry report, user-programmed report, ps info system, -mentioned rules apply, project information system
Related Notes : 
       
| 526206 | PSIS: Consulting notes on business information system | 
| 67717 | RRI: Endless selection during report call | 
| 50154 | Expert mode for the report/report interface |