Extractor based on function module

Question

I have create an extractor based on
A function module: ZSALESTEXT_EXTRACT
Extract structure: ZOXDT20030
When I execute this extractor on debug mode, as the function module ZSALESTEXT_EXTRACT is called I have a short dump with the following message:
Since the caller of the procedure could not have expected this exception    
to occur, the running program was terminated.                              
The reason for the exception is:                                            
When calling the function module "ZSALESTEXT_EXTRACT", one of the parameters
needed according to the interface description was not specified.                                                                               
This parameter was "E_T_DATA".                                              
Do you know what's happen ?
Many thanks
Annexe Function module code :
FUNCTION ZSALESTEXT_EXTRACT.
""Local interface:
*"  TABLES
*"      E_T_DATA STRUCTURE  ZOXDT20030
*"      SELECTION STRUCTURE  RSSELECT
Data: D_NAME LIKE THEAD-TDNAME,
d_vbeln like vbap-vbeln,
d_posnr like vbap-posnr,
d_date1 like vbap-aedat,
d_date2 like vbap-aedat,
TRESULT LIKE TLINE occurs 1 with header line.
*internal table
Types: BEGIN OF SalesTextTable,
         VBELN Like VBAP-VBELN,
         POSNR  Like VBAP-POSNR,
         TextMST    Like TLINE-TDLINE,
         TextKPI    Like TLINE-TDLINE,
       END OF SalesTextTable.
*Tables:   Like SalesTextTable with header line.
DATA: ITAB TYPE TABLE OF SalesTextTable with header line
      WITH KEY              VBELN
                            POSNR,
      WA_ITAB LIKE LINE OF ITAB.
LOOP AT SELECTION WHERE FIELDNM EQ 'DATE1'.
  d_date1 = SELECTION-LOW.
ENDLOOP.
LOOP AT SELECTION WHERE FIELDNM EQ 'DATE2'.
  d_date2 = SELECTION-LOW.
ENDLOOP.
Select VBELN POSNR
  into corresponding fields of table ITAB
  from VBAP
  where AEDAT between d_date1 and d_date2.
Loop at ITAB into WA_ITAB.
Concatenate WA_ITAB-VBELN WA_ITAB-POSNR into d_name.
*     Material Sales Text
CALL FUNCTION 'ZSALES_ORDER_TEXT_BW'
  EXPORTING
  CLIENT                        = SY-MANDT
    ID                            = '0001'
    LANGUAGE                      = 'E'
    NAME                          = d_name
    OBJECT                        = 'VBBP'
  TABLES
    LINES                         = TRESULT.
If sy-subrc = 0.
  Read table TRESULT index 1.
E_T_DATA-TextMST = TRESULT-TDLINE.
  refresh TRESULT.
  clear TRESULT.
endif.
*     KPI Comment
CALL FUNCTION 'ZSALES_ORDER_TEXT_BW'
  EXPORTING
  CLIENT                        = SY-MANDT
    ID                            = 'Z004'
    LANGUAGE                      = 'E'
    NAME                          = d_name
    OBJECT                        = 'VBBP'
  TABLES
    LINES                         = TRESULT.
If sy-subrc = 0.
Read table TRESULT index 1.
E_T_DATA-TextKPIC = TRESULT-TDLINE.
   clear TRESULT.
endif.
E_T_DATA-SALES_ORDER = WA_ITAB-VBELN.
E_T_DATA-SALES_ITEM = WA_ITAB-POSNR.
Append E_T_DATA.
endloop.
ENDFUNCTION.

Answer 1

This FM does not have the correct import parameters. Have a look at RSAX_BIW_GET_DATA_SIMPLE.
FUNCTION RSAX_BIW_GET_DATA_SIMPLE.
""Lokale Schnittstelle:
*"  IMPORTING
*"     VALUE(I_REQUNR) TYPE  SRSC_S_IF_SIMPLE-REQUNR
*"     VALUE(I_DSOURCE) TYPE  SRSC_S_IF_SIMPLE-DSOURCE OPTIONAL
*"     VALUE(I_MAXSIZE) TYPE  SRSC_S_IF_SIMPLE-MAXSIZE OPTIONAL
*"     VALUE(I_INITFLAG) TYPE  SRSC_S_IF_SIMPLE-INITFLAG OPTIONAL
*"     VALUE(I_READ_ONLY) TYPE  SRSC_S_IF_SIMPLE-READONLY OPTIONAL
*"     VALUE(I_REMOTE_CALL) TYPE  SBIWA_FLAG DEFAULT SBIWA_C_FLAG_OFF
*"  TABLES
*"      I_T_SELECT TYPE  SRSC_S_IF_SIMPLE-T_SELECT OPTIONAL
*"      I_T_FIELDS TYPE  SRSC_S_IF_SIMPLE-T_FIELDS OPTIONAL
*"      E_T_DATA STRUCTURE  SFLIGHT OPTIONAL
*"  EXCEPTIONS
*"      NO_MORE_DATA
*"      ERROR_PASSED_TO_MESS_HANDLER
Your FM will be called from the service API and must have the same parameters as this same FM.
Cheers
Aneesh