Solution : https://service.sap.com/sap/support/notes/157211 (SAP Service marketplace login required)
Key words :
additional key words iw31, task list long text, order long text, pm/sm order, order short text, attached advance corrections, short text, order header, attached notes 72531, display mode
Related Notes :
| 157216 | No transfer short text <-> long text in order |
| 139480 | Long text contains maint. task list and maint. item |
| 89125 | Long text of the order header is overwritten |
| 72531 | I/O error when saving changed production order |