Solution : https://service.sap.com/sap/support/notes/329080 (SAP Service marketplace login required)
Key words :
sgrw_navi_barsgrw_om sgrw_ps sgrw_pc sgrw_sl sgrw_pca sgrw_ec sgrw_lis, additional key words navigation bar, navigation control ----- supportguide 20010207184721 -----reportwriter, navigation bar, variation hierarchy, display keys, program error, affects systems, directly implemented, support package
Related Notes :
353607 | Composite note 'Navigation bar' |
304105 | Report Writer: Incorrect variation hierarchy |