COMPUTE_CHECKNUM_NO_001 SAP Function module

COMPUTE_CHECKNUM_NO_001 is a standard SAP function module available within R/3 SAP systems depending on your version and release level. Below is the pattern details for this FM showing its interface including any import and export parameters, exceptions etc as well as any documentation contributions (Comments) specific to the object.

See here to view full function module documentation and code listing, simply by entering the name COMPUTE_CHECKNUM_NO_001 into the relevant SAP transaction such as SE37 or SE80.

Associated Function Group: F110
Released Date: Not Released
Processing type: Normal fucntion module

Pattern for FM COMPUTE_CHECKNUM_NO_001 - COMPUTE CHECKNUM NO 001

CALL FUNCTION 'COMPUTE_CHECKNUM_NO_001' "
* EXPORTING
*   i_check_correct = 'X'       "               Flag: 'X' - check if number correct
  CHANGING
    c_value =                   "               Number to process
  EXCEPTIONS
    NUMBER_TOO_LONG = 1         "
    NUMBER_TOO_SHORT = 2        "
    NUMBER_NOT_VALID = 3        "
    NUMBER_NOT_CORRECT = 4      "
    .  "  COMPUTE_CHECKNUM_NO_001

ABAP code example for Function Module COMPUTE_CHECKNUM_NO_001

The ABAP code below is a full code listing to execute function module COMPUTE_CHECKNUM_NO_001 including all data declarations. The code uses the latest in-line data DECLARATION SYNTAX but I have included an ABAP code snippet at the end to show how declarations would look using the original method of declaring data variables up front. This will allow you to compare and fully understand the new inline method. Please note some of the newer syntax such as the @DATA is not available until a later 4.70 service pack (SP8).

DATA(ld_c_value) = 'some text here'.

DATA(ld_i_check_correct) = 'some text here'.
.

CALL FUNCTION 'COMPUTE_CHECKNUM_NO_001'
* EXPORTING
*   i_check_correct =            ld_i_check_correct
  CHANGING
    c_value =                    ld_c_value
  EXCEPTIONS
    NUMBER_TOO_LONG =            1
    NUMBER_TOO_SHORT =           2
    NUMBER_NOT_VALID =           3
    NUMBER_NOT_CORRECT =         4
    .  "  COMPUTE_CHECKNUM_NO_001

IF SY-SUBRC EQ 0.
  "All OK
ELSEIF SY-SUBRC EQ 1. "Exception
  "Add code for exception here
ELSEIF SY-SUBRC EQ 2. "Exception
  "Add code for exception here
ELSEIF SY-SUBRC EQ 3. "Exception
  "Add code for exception here
ELSEIF SY-SUBRC EQ 4. "Exception
  "Add code for exception here
ENDIF.

ABAP code to compare 7.40 inline data declaration with original syntax

The below ABAP code uses the older none in-line data declarations. This allows you to see the coding differences/benefits of the later inline syntax. It may also be useful if you are using an older version of SAP as some of the newer syntax above, such as the @DATA is not available until 4.70 EHP 8.

DATA:

ld_c_value
 
 TYPE STRING ,
ld_i_check_correct
 
 TYPE STRING .


ld_c_value = 'some text here'.
ld_i_check_correct = 'some text here'.

SAP Documentation for FM COMPUTE_CHECKNUM_NO_001