Solution : https://service.sap.com/sap/support/notes/675181 (SAP Service marketplace login required)
Key words :
double-byte code page, multibyte code page, terms cl_nls_struc_cont reason, unicode system, -unicode system, transport package, length occur, asian texts, target system, prepare_transport_packet method
Related Notes :
673533 | Alignmnt problem during extraction into/from Unicode systems |