Solution : https://service.sap.com/sap/support/notes/978244 (SAP Service marketplace login required)
Key words :
newer installation tool releases, i18n_nametab_old_allow=5000i18n_nametab_old_log=5000then check, unicode conversion short time, dedicated package sapntab, terms cu&uc, -called create timestamps, -called abap-timestamps, active abap-timestamps, message env i18n_nametab_timestamps, alternative nametab entry
Related Notes :
| 1319517 | Unicode Collection Note |
| 447519 | Kernel patches for code pages, languages and locales |