1 系統內部轉換命令(一般建議不直接使用) 
SYSTEM-CALL CONVERT ID id DATA data 
    ENCODING encoding 
    ENDIAN endian 
    IGNORE_CERR ignore_cerr N n 
    POSITION position 
    REPLACEMENT replacement 
    LEN len 
    BUFFER buffer 
    ERR err.
Text and lines are converted between different formats.

2 使用SAP系統封裝的類CL_ABAP_CONV_IN_CE

 and  CL_ABAP_CONV_OUT_CE
樣例
data  STR TYPE C.

  DATA: S TYPE STRING,
        LEN TYPE I.
  DATA: CVTI_UTF8 TYPE REF TO CL_ABAP_CONV_IN_CE.
  FIELD-SYMBOLS : <X> TYPE X.

  ASSIGN STR TO <X> CASTING.

  CVTI_UTF8 =  CL_ABAP_CONV_IN_CE=>CREATE( ENCODING = 'UTF-8' INPUT    = <X> ).

  CALL METHOD CVTI_UTF8->READ
    IMPORTING
        DATA = S
        LEN  = LEN
    EXCEPTIONS OTHERS = 1.

  STR = S.

3 使用sap封裝的Form
要包含以下單元:RSCPICINC 
封裝的form 
CONV_TO_ASCII 
CONV_TO_EBCDIC 
CONV_TO_UTF8 
CONV_FROM_ASCII
CONV_FROM_ASCII
CONV_FROM_EBCDIC

4使用sap封裝的函式(外部->系統預設程式碼,系統預設程式碼->外部)
function translate_codepage_in.

*"  IMPORTING
*"     VALUE(CODEPAGE_FROM) TYPE  ABAP_ENCOD
*"  TABLES
*"      T_DATA
*"  EXCEPTIONS
*"      ERROR_TRANSLATE
function translate_codepage_out.
*"  IMPORTING
*"     VALUE(CODEPAGE_FROM) TYPE  ABAP_ENCOD
*"  TABLES
*"      T_DATA
*"  EXCEPTIONS
*"      ERROR_TRANSLATE

5使用TRANSLATE命令 
TRANSLATE c ...FROM CODE PAGE g1...     TO CODE PAGE g2.

6 常見程式碼編號
EBCDIC = '0100'
ASCII  =  '1100'
UTF8 = 'UTF-8'

7 相關的元素
ABAP_ENCOD
TCP00(表)