Solution : https://service.sap.com/sap/support/notes/616353 (SAP Service marketplace login required)
Key words :
nullpointer exception' occurs, importing support package 2, mss business package 50, displayed column group, column configuration, teamviewer iview, iview usercolumnview, view v_twpc_acol, usercolumnview iview, subsequent 'saving'
Related Notes :
| 568559 | Composite SAP note: Manager Self Service 50.2 (My Staff) |