Solution : https://service.sap.com/sap/support/notes/83196 (SAP Service marketplace login required)
Key words : 
p1  language  p2  country  p3  modifier  p4  locale  p5  code page number  p6, profile parameter 'install/codepage/db/transp' takes effect, initiated set locale commandsduring translate commands, absolutely require adata-dependent locale, code page number, p2  languages allowed solution, prevent command set locale, processed underthe correct locale, online documentation fortransaction todo, work processes jump erratically
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| 145035 | TEXTENV_CODEPAGE_NOT_ALLOWED when print/preview | 
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| 143050 | sometimes TEXTENV_CODEPAGE_NOT_ALLOWED | 
| 118673 | TEXTENV_CODEPAGE_NOT_ALLOWED when booting | 
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| 87687 | Setting text environment not possible (TD 464) | 
| 79991 | Multi-Language and Unicode support of SAP applications | 
| 73606 | Supported Languages and Code Pages | 
| 42781 | RABAX TEXTENV_... | 
| 42305 | RSCPINST (I18N configuration tool) | 
| 15023 | Initializing table TCPDB (RSCP0004) (EBCDIC) | 
| 5470 | Syslog E14: Reorganized Buffer RSCPCCC ... |