Runtime Error Using BAPI SALESORDER CHANGE

Question

Hi,
I was trying to use the BAPI_SALESORDER_CHANGE to change 'Material Group 1' field. When executing the program, it kept on failing with this runtime error 'CALL_FUNCTION_CONFLICT_LENG'. Below is my codes and also the error analysis found in ST22.
Kindly please let me know my program errors.
Thanks much.
CODES :-
DATA: l_vbeln TYPE bapivbeln-vbeln,
l_hx LIKE bapisdhead1x,
l_r TYPE STANDARD TABLE OF bapiret2 WITH HEADER LINE,
l_i TYPE STANDARD TABLE OF bapisditem WITH HEADER LINE,
l_ix TYPE STANDARD TABLE OF bapisditemx WITH HEADER LINE,
l_success(1) TYPE c VALUE 'Y'.
l_vbeln = '0000707671'.
l_hx-updateflag = 'U'.
l_i-itm_number = '000010'.
l_i-prc_group1 = 'Y'.
APPEND l_i.
l_ix-itm_number = '000010'.
l_ix-updateflag = 'U'.
l_ix-prc_group1 = 'X'.
APPEND l_ix.
CALL FUNCTION 'BAPI_SALESORDER_CHANGE'
EXPORTING
salesdocument = l_vbeln
ORDER_HEADER_IN =
order_header_inx = l_hx
SIMULATION =
BEHAVE_WHEN_ERROR = ' '
INT_NUMBER_ASSIGNMENT = ' '
LOGIC_SWITCH =
NO_STATUS_BUF_INIT = ' '
TABLES
return = l_r
order_item_in = l_i
order_item_inx = l_ix
PARTNERS =
PARTNERCHANGES =
PARTNERADDRESSES =
ORDER_CFGS_REF =
ORDER_CFGS_INST =
ORDER_CFGS_PART_OF =
ORDER_CFGS_VALUE =
ORDER_CFGS_BLOB =
ORDER_CFGS_VK =
ORDER_CFGS_REFINST =
SCHEDULE_LINES =
SCHEDULE_LINESX =
ORDER_TEXT =
ORDER_KEYS =
CONDITIONS_IN =
CONDITIONS_INX =
EXTENSIONIN =
NFMETALLITMS =
LOOP AT l_r.
IF l_r-type <> 'S'.
l_success = 'N'.
EXIT.
ENDIF.
CLEAR l_r.
ENDLOOP.
IF l_success = 'Y'.
CALL FUNCTION 'BAPI_TRANSACTION_COMMIT'
EXPORTING
WAIT =
IMPORTING
RETURN =
WRITE: / 'Update successful'.
ELSE.
WRITE: / 'Update fail'.
ENDIF.
Error analysis
An exception occurred that is explained in detail below.
The exception, which is assigned to class 'CX_SY_DYN_CALL_ILLEGAL_TYPE', was
not caught and
therefore caused a runtime error.
The reason for the exception is:
The call to the function module "BAPI_SALESORDER_CHANGE" is incorrect:
In the function module interface, you can specify only
fields of a specific type and length under "ORDER_HEADER_INX".
Although the currently specified field
"L_HX" is the correct type, its length is incorrect.

Answer 1

Thanks ALL. Here is the amended program that works fine :-
DATA: l_vbeln TYPE bapivbeln-vbeln,
      l_hx TYPE bapisdh1x,
      l_r TYPE STANDARD TABLE OF bapiret2 WITH HEADER LINE,
      l_i TYPE STANDARD TABLE OF bapisditm WITH HEADER LINE,
      l_ix TYPE STANDARD TABLE OF bapisditmx WITH HEADER LINE,
      l_success(1) TYPE c VALUE 'Y'.
l_vbeln = '0000707671'.
l_hx-updateflag = 'U'.
l_i-itm_number = '000010'.
l_i-prc_group1 = 'Y'.
APPEND l_i.
l_ix-itm_number = '000010'.
l_ix-updateflag = 'U'.
l_ix-prc_group1 = 'X'.
APPEND l_ix.
CALL FUNCTION 'BAPI_SALESORDER_CHANGE'
  EXPORTING
    salesdocument               = l_vbeln
  ORDER_HEADER_IN             =
    order_header_inx            = l_hx
  SIMULATION                  =
  BEHAVE_WHEN_ERROR           = ' '
  INT_NUMBER_ASSIGNMENT       = ' '
  LOGIC_SWITCH                =
  NO_STATUS_BUF_INIT          = ' '
  TABLES
    return                      = l_r
    order_item_in               = l_i
    order_item_inx              = l_ix
  PARTNERS                    =
  PARTNERCHANGES              =
  PARTNERADDRESSES            =
  ORDER_CFGS_REF              =
  ORDER_CFGS_INST             =
  ORDER_CFGS_PART_OF          =
  ORDER_CFGS_VALUE            =
  ORDER_CFGS_BLOB             =
  ORDER_CFGS_VK               =
  ORDER_CFGS_REFINST          =
  SCHEDULE_LINES              =
  SCHEDULE_LINESX             =
  ORDER_TEXT                  =
  ORDER_KEYS                  =
  CONDITIONS_IN               =
  CONDITIONS_INX              =
  EXTENSIONIN                 =
  NFMETALLITMS                =
LOOP AT l_r.
  IF l_r-type <> 'S'.
    l_success = 'N'.
    EXIT.
  ENDIF.
  CLEAR l_r.
ENDLOOP.
IF l_success = 'Y'.
  CALL FUNCTION 'BAPI_TRANSACTION_COMMIT'
  EXPORTING
    WAIT          =
  IMPORTING
    RETURN        =
  WRITE: / 'Update successful'.
ELSE.
  WRITE: / 'Update fail'.
ENDIF.