Solution : https://service.sap.com/sap/support/notes/434123 (SAP Service marketplace login required)
Summary : 
      This SAP Note outlines steps for displaying additional fields in the order information system for SAP releases from 4.70 onwards, utilizing customer includes and the WORKORDER_INFOSYSTEM BAdI for enhancements without core modification. For SAP releases below 4.70, only traditional modification is feasible. It details adding fields to the DDIC structure, setting display attributes through RCOTX000, configuring field control via RCNCT000, and integrating custom coding for data population. Importantly, SAP disclaims responsibility for potential issues arising from these modifications.
Key words : 
attachmentprogramm  list                            structure  includeppiod000  goods movements                  iomamo    rcnmamoppioe000  trigger points                  ioopmst    rcnmstppiof000  production resource/tool         ioopprt    rcnprtppiog000  automatic goods movements        iogomo     rcngomoppioh000  order headers                    ioheader  rcnheadppioi000  items                            ioitem    rcnitemppiok000  capacities                      ioopcap    rcncapppiom000  components                      ioopcomp   rcncompppioo000  operations                      iooper     rcnoperppioq000  purchase requisitions            iooppreq   rcnpreqppior000  confirmations                    ioconf    rcnconfppios000  sequences                        iosequen  rcnsequppiot000  purchase orders                  iooppord  rcnpordppiow000  goods movements, order headers ioheader, structure ioheader, planned orders, operations, order headers, changed structure, structure tables, column headers, entire order processing
Related Notes : 
       
| 908826 | COOIS: Texts from RCOTX000 not copied to the ALV grid | 
| 615206 | COOIS: BAdI order delay in IOHEADER | 
| 615176 | COOIS: BADI for predecessor status | 
| 540779 | FAQ: Information system | 
| 363327 | COOIS/CO26/CO28: Change list of fields that can be displayed |