Solution : https://service.sap.com/sap/support/notes/68742 (SAP Service marketplace login required)
Key words :
additional key words iw31, 'text &1 id aufk language &3, error message td600, field stpo-potx2, text lines, short text, maintenance order, standard system, implement note 40111, related notes
Related Notes :
| 77604 | TD607 when saving PM order if task list is used |
| 69817 | Long text change in header operat.-->No PReq change |
| 40111 | Long text is not copied from component into PReq |