Solution : https://service.sap.com/sap/support/notes/908826 (SAP Service marketplace login required)
Key words :
column header solution correct, 'column header' field, order information system, alv grid display, ddic data element, ideal optimum labeling, abap list output, 'keyword short' fields, field strings, output width
Related Notes :
| 434123 | Filling and displaying own fields in information system |