Solution : https://service.sap.com/sap/support/notes/487971 (SAP Service marketplace login required)
Key words : 
sm30  rabeleg ergaenze   98 rain j_1h_rabeleg_numbering << delete, sap thailand offers special migration training/workshops, obt8 - enter text id 'th00' - vat, directory /usr/sap/trans/eps/, application server    ---> thai migration tools, /3 country version thailand add-, prerequisites thai country version, run task - accounting document, 7 solution special migration tools, direcly run program j_1hchk1
Related Notes : 
       
| 331856 | Migration Tools for Country Version Thailand to 46C | 
| 330793 | Downloading patches | 
| 305570 | R/3 4.6C Installation/Upgrade Thai | 
| 149032 | HP/CRT status for Thai country version | 
| 66079 | R/3 Printing in Thai | 
| 45463 | Thai installation procedure |