Solution : https://service.sap.com/sap/support/notes/109234 (SAP Service marketplace login required)
Key words :
choose menu option 'environment -> events', additional key words kzb2, source code corrections+ deleting, generate table maintenance dialog, initial screen table/view, solution + source code, system determines overlaps, call transaction se54, provided input field, leave view maintenance
Related Notes :
126551 | Composite note: Customizing of costing sheet |