Solution : https://service.sap.com/sap/support/notes/379073 (SAP Service marketplace login required)
Key words :
technical / standard field names, incomplete delivery/error, conversion exit conversion_exit_konpr_outputinto, field string ioheader, correctly formatted output, order information system, internal project number, external project number, title wbs element, define field projn
Related Notes :
| 363327 | COOIS/CO26/CO28: Change list of fields that can be displayed |
| 66757 | CO26:WBS element in order header cannot be selected |