Custom extractors using function modules

Hey all
Does anyone has a document regarding how to <b>Develop Custom extractors using function modules?Step by step method would be great</b>
Also document regarding <b>CTS in BW?</b>
Appreciate it
Thanks

Hi,
See here:
Generic Extractors
Generic data sources
Generic DS
/people/siegfried.szameitat/blog/2005/09/29/generic-extraction-via-function-module
Best regards,
Eugene

Similar Messages

Create a generic extractor using Function module, what steps must I follow

Hello gurus team
I need to Create a generic extractor using Function module, what steps must I follow?
Just I have a function module not estructures or something, only the program.... and I have intented to do it in rso2 using the fm option, but give an error... somebody can helpme???
BR

Hi,
Generic Extraction via Function Module
/people/siegfried.szameitat/blog/2005/09/29/generic-extraction-via-function-module
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/a0f46157-e1c4-2910-27aa-e3f4a9c8df33
http://help.sap.com/saphelp_nw04/helpdata/en/86/1c8c3e94243446e10000000a114084/frameset.htm
Thanks,
JituK

Generic Extractor using Function module with Complex Interface

Hi,
Has anyone created Generic extractor using Function module with Complex Interface?
What is the difference between Complex and Simple interface in Function module?
Pls explain.
Thanks,
Gopal

Hi,
Go through this link.....
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/d3219af2-0c01-0010-71ac-dbb4356cf4bf
GTR

Delta with Generic Extractor using function module

Hi,
I have created an extractor using function module and it work fine (mode FULL)
It's an extractor based on the FM RSAX_BIW_GET_DATA_SIMPLE.
In TCODE RSO2, I have specified a delta field (AEDAT).
In table ROOSOURCE, this extractor is defined by :
DELTA = AIE
EXMETHOD = F1
When I extract data in Init mode, there is no problem. But delta don't extract any entries.
When I trace with TCODE ST01, in Init mode the function module is executed but in delta mode, there is no trace of any use of this function module.
I don't know how to do to make this extractor work fine in delta mode.

Hi Pascal,
The same function module i have used and succesffuly doing delta using it. So it works for both full & delta.
How ur testing it and where are you testing it for delta.
Do the delta testing through BI end. Set the
As u have already set the delta field., now Follow below steps:
1. First set the safety interval upper limit to -1, so that it will extract the delta data of 1 day back records also.
2. Please make sure wether the delta records are available or not in r/3, if there is no records to be fetched in for delta then u will not be able to track out wether delta is working or not.
3. Now do the init from BI end first. Delta initialization without data transfer. - It will give u green status with 1 dummmy record.
4. Now do the delta. It will extract the delta records.
Before that make sure that if any selection your giving in Infopackage should be met out by these delta records.
Thanks
Dipika

Generic extractor using function module

Hi all,
We have created a generic extractor using a function module.
We created a new custom function copied from 'RSAX_BIW_GET_DATA_SIMPLE'. has been set as the delta date for this data source in transaction RSO2.The function module is a custom version of the FM RSAR_BIW_GET_DATA_SIMPLE.

Hi Anitha,
Please send your email id...
I will send the documnent to you.
My mail id [email protected]

Delta fo Generic extractor using function module

Hi,
I am using the following function module for generic extractor but its always showing me extraction error.Could anyone please suggest to resolve the issue.
Thanks in advance fo rsuggestion.
FUNCTION Z_BW_SALESDATA_EXTRACT_CHNG2.
""Local interface:
*" IMPORTING
*"     VALUE(I_REQUNR) TYPE SBIWA_S_INTERFACE-REQUNR
*"     VALUE(I_ISOURCE) TYPE SBIWA_S_INTERFACE-ISOURCE OPTIONAL
*"     VALUE(I_MAXSIZE) TYPE SBIWA_S_INTERFACE-MAXSIZE OPTIONAL
*"     VALUE(I_INITFLAG) TYPE SBIWA_S_INTERFACE-INITFLAG OPTIONAL
*"     VALUE(I_UPDMODE) TYPE SBIWA_S_INTERFACE-UPDMODE OPTIONAL
*"     VALUE(I_DATAPAKID) TYPE SBIWA_S_INTERFACE-DATAPAKID OPTIONAL
*"     VALUE(I_PRIVATE_MODE) OPTIONAL
*"     VALUE(I_CALLMODE) LIKE ROARCHD200-CALLMODE OPTIONAL
*"     VALUE(I_REMOTE_CALL) TYPE SBIWA_FLAG DEFAULT SBIWA_C_FLAG_OFF
*" TABLES
*"      I_T_SELECT TYPE SBIWA_T_SELECT OPTIONAL
*"      I_T_FIELDS TYPE SBIWA_T_FIELDS OPTIONAL
*"      E_T_DATA OPTIONAL
*"      E_T_SOURCE_STRUCTURE_NAME OPTIONAL
*" EXCEPTIONS
*"      NO_MORE_DATA
*"      ERROR_PASSED_TO_MESS_HANDLER
The input parameter I_DATAPAKID is not supported yet !
Example: InfoSource containing TADIR objects
TABLES: VBFA,VBRK,tadir.
Auxiliary Selection criteria structure
DATA: l_s_select TYPE sbiwa_s_select.
Maximum number of lines for DB table
STATICS: l_maxsize TYPE sbiwa_s_interface-maxsize.
user defined variables.
DATA : X_UPDMODE(1) Type c,        " Update Type
        X_LastUpdate Like Sy-Datum. " Last Update Date
         X_LastUpdate TYPE RODELTAID. " Last Update Date   "TCS_KAP
Select ranges
RANGES: L_R_VBELN   FOR VBAK-VBELN,
          L_R_AUDAT   FOR VBAK-AUDAT.
Parameter I_PRIVATE_MODE:
Some applications might want to use this function module for other
purposes as well (e.g. data supply for OLTP reporting tools). If the
processing logic has to be different in this case, use the optional
parameter I_PRIVATE_MODE (not supplied by BIW !) to distinguish
between BIW calls (I_PRIVATE_MODE = SPACE) and other calls
(I_PRIVATE_MODE = X).
If the message handling has to be different as well, define Your own
messaging macro which interprets parameter I_PRIVATE_MODE. When
called by BIW, it should use the LOG_WRITE macro, otherwise do what
You want.
Initialization mode (first call by SAPI) or data transfer mode
(following calls) ?
IF i_initflag = sbiwa_c_flag_on.
Initialization: check input parameters
                buffer input parameters
                prepare data selection
The input parameter I_DATAPAKID is not supported yet !
Invalid second initialization call -> error exit
    IF NOT g_flag_interface_initialized IS INITIAL.
      IF 1 = 2. MESSAGE e008(r3). ENDIF.
      log_write 'E'                    "message type
                'R3'                   "message class
                '008'                  "message number
                ' '                    "message variable 1
                ' '.                   "message variable 2
      RAISE error_passed_to_mess_handler.
      ENDIF.
Check InfoSource validity
    CASE i_isource.
      WHEN 'Z_BW_SDDATA_CREATEON'.
      WHEN 'Y'.
      WHEN 'Z'.
      WHEN OTHERS.
        IF 1 = 2. MESSAGE e009(r3). ENDIF.
        log_write 'E'                  "message type
                  'R3'                 "message class
                  '009'                "message number
                  i_isource            "message variable 1
                  ' '.                 "message variable 2
        RAISE error_passed_to_mess_handler.
    ENDCASE.
Check for supported update mode
   CASE i_updmode.
     WHEN 'F'.
     WHEN OTHERS.
       IF 1 = 2. MESSAGE e011(r3). ENDIF.
       log_write 'E'                  "message type
                 'R3'                 "message class
                 '011'                "message number
                 i_updmode            "message variable 1
                 ' '.                 "message variable 2
       RAISE error_passed_to_mess_handler.
   ENDCASE.
Check for obligatory selection criteria
   READ TABLE i_t_select INTO l_s_select WITH KEY fieldnm = 'VBELN'.
   IF sy-subrc <> 0.
     IF 1 = 2. MESSAGE e010(r3). ENDIF.
     log_write 'E'                    "message type
               'R3'                   "message class
               '010'                  "message number
               'PGMID'                "message variable 1
               ' '.                   "message variable 2
     RAISE error_passed_to_mess_handler.
   ENDIF.
   APPEND LINES OF i_t_select TO g_t_select.
Fill parameter buffer for data extraction calls
    g_s_interface-requnr    = i_requnr.
    g_s_interface-isource   = i_isource.
    g_s_interface-maxsize   = i_maxsize.
    g_s_interface-initflag = i_initflag.
    g_s_interface-updmode   = i_updmode.
    g_s_interface-datapakid = i_datapakid.
    g_flag_interface_initialized = sbiwa_c_flag_on.
Store Update mode in static variable...
   X_UPDMODE = I_UPDMODE.
    Select Single DELTAID
           Into   X_LastUpdate
           From   ROOSGENDLM
           Where OLTPSOURCE = 'Z_BW_SDDATA_CREATEON'.
    If X_LastUpdate Is Initial.
      X_LastUpdate = '19800101'. " The oldest..., this should not happen
    Endif.
Fill field list table for an optimized select statement
(in case that there is no 1:1 relation between InfoSource fields
and database table fields this may be far from beeing trivial)
    APPEND LINES OF i_t_fields TO g_t_segfields.
ELSE.                 "Initialization mode or data extraction ?
Data transfer: First Call      OPEN CURSOR + FETCH
               Following Calls FETCH only
X_UPDMODE = I_UPDMODE.
First data package -> OPEN CURSOR
    IF g_counter_datapakid = 0.
Fill range tables for fixed InfoSources. In the case of generated
InfoSources, the usage of a dynamical SELECT statement might be
more reasonable. BIW will only pass down simple selection criteria
of the type SIGN = 'I' and OPTION = 'EQ' or OPTION = 'BT'.
      LOOP AT g_t_select INTO l_s_select WHERE fieldnm = 'VBELN'.
        MOVE-CORRESPONDING l_s_select TO L_R_VBELN.
        APPEND L_R_VBELN.
      ENDLOOP.
      LOOP AT g_t_select INTO l_s_select WHERE fieldnm = 'AUDAT'.
        MOVE-CORRESPONDING l_s_select TO L_R_AUDAT.
        APPEND L_R_AUDAT.
      ENDLOOP.
Determine number of database records to be read per FETCH statement
from input parameter I_MAXSIZE. If there is a one to one relation
between InfoSource table lines and database entries, this is trivial.
In other cases, it may be impossible and some estimated value has to
be determined.
*added by Yogesh
      DELETE FROM ZBWSALEDATA.
*ended by Yogesh
      l_maxsize = g_s_interface-maxsize.
Check for supported update mode
      CASE X_UPDMODE.
        WHEN 'F' Or 'I'. " Full or Init
**get sales orders
          SELECT *
                       INTO CORRESPONDING FIELDS OF TABLE I_SALESDATA
                       FROM VBAK AS K
                       INNER JOIN VBAP AS P
                             ON PVBELN = KVBELN
                       WHERE K~VBELN IN L_R_VBELN
                       AND   K~AUDAT IN L_R_AUDAT
                       AND   K~VBTYP = 'C'.
          IF I_SALESDATA[] IS NOT INITIAL.
            PERFORM F_GET_DATA.                   "get data
            PERFORM F_DEL_VATCOND.                "delete vat conditions
            PERFORM F_GET_TAR_COSTUNIT.           "get tariff cost unit
            PERFORM F_GET_NETVAL TABLES IT_VBDPA1. "get net val of the item
            PERFORM F_GET_SALESDATA.
*write perform with name F_INSERT_DB_ZBWSALEDATA.
            PERFORM F_INSERT_DB_ZBWSALEDATA.      "insert into table ZBWSALESDATA
           LOOP AT I_SALESDATA WHERE NETPR = 0.
             MOVE-CORRESPONDING I_SALESDATA TO I_SALESDATA_FIN.
             APPEND I_SALESDATA_FIN.
           ENDLOOP.
           SORT I_SALESDATA_FIN BY VBELN POSNR KSCHL.
           DELETE ADJACENT DUPLICATES FROM I_SALESDATA_FIN
                                           COMPARING VBELN POSNR
                                                     KSCHL.
           INSERT ZBWSALEDATA FROM TABLE I_SALESDATA_FIN.
          ENDIF.
        WHEN 'D'. " Delta
          SELECT *
                         INTO CORRESPONDING FIELDS OF TABLE I_SALESDATA
                         FROM VBAK AS K
                         INNER JOIN VBAP AS P
                               ON PVBELN = KVBELN
                        WHERE K~ERDAT >= X_LastUpdate
                         WHERE K~ERDAT >= X_LastUpdate+0(8)          "TCS_KAP
                         AND   K~VBTYP = 'C'.
          IF I_SALESDATA[] IS NOT INITIAL.
            PERFORM F_GET_DATA.                   "get data
            PERFORM F_DEL_VATCOND.                "delete vat conditions
            PERFORM F_GET_TAR_COSTUNIT.           "get tariff cost unit
            PERFORM F_GET_NETVAL TABLES IT_VBDPA1. "get net val of the item
            PERFORM F_GET_SALESDATA.
*write perform with name F_INSERT_DB_ZBWSALEDATA.
            PERFORM F_INSERT_DB_ZBWSALEDATA.      "insert into table ZBWSALESDATA
           LOOP AT I_SALESDATA WHERE NETPR = 0.
             MOVE-CORRESPONDING I_SALESDATA TO I_SALESDATA_FIN.
             APPEND I_SALESDATA_FIN.
           ENDLOOP.
           SORT I_SALESDATA_FIN BY VBELN POSNR KSCHL.
           DELETE ADJACENT DUPLICATES FROM I_SALESDATA_FIN
                                           COMPARING VBELN POSNR
                                                     KSCHL.
           INSERT ZBWSALEDATA FROM TABLE I_SALESDATA_FIN.
          ENDIF.
        WHEN OTHERS.
          IF 1 = 2. MESSAGE E011(R3). ENDIF.
          LOG_WRITE 'E' "message type
          'R3' "message class
          '011' "message number
          I_UPDMODE "message variable 1
          ' '. "message variable 2
          RAISE ERROR_PASSED_TO_MESS_HANDLER.
      ENDCASE.
**end get sales orders
      OPEN CURSOR WITH HOLD g_cursor FOR
      SELECT (g_t_fields) FROM ZBWSALEDATA.
     WHERE pgmid IN l_r_pgmid AND
                                    object IN l_r_object.
    ENDIF.                             "First data package ?
Fetch records into interface table. There are two different options:
- fixed interface table structure for fixed InfoSources have to be
named E_T_'Name of assigned source structure in table ROIS'.
- for generating applications like LIS and CO-PA, the generic table
E_T_DATA has to be used.
Only one of these interface types should be implemented in one API !
    FETCH NEXT CURSOR g_cursor
               APPENDING CORRESPONDING FIELDS
               OF TABLE E_T_DATA
               PACKAGE SIZE l_maxsize.
    IF sy-subrc <> 0.
      CLOSE CURSOR g_cursor.
      RAISE no_more_data.
    ENDIF.
    g_counter_datapakid = g_counter_datapakid + 1.
ENDIF.              "Initialization mode or data extraction ?
Best regards,
Yogesh

Dear Yogesh,
Try to debug the code by putting a break point at select statement...is the FM Syntactically correct ??
Check the Select statements..if all fields are not required avoid using Select * , and use always for all entries rather than JOINS..
Note : For Joins you have to specify the Fields in the Select...Dont use Select * ....
Hope it helps..
Thanks,
Krish

Generic data extractor using function module

Hi All,
I want to create a generic data extractor using a function module within the BW system. i.e. the extractor will run in BW and and store the data in a cube( in BW). No R/3 is invloved. I proceeded as follows:
1. Created a structure through se11.
2. Created a function module. But while defining "E_T_DATA" in the "Tables" section of the function module, I am getting the error "TABLES parameters are obsolete". I defined as follows:
E_T_DATA TYPE ZBW_EXTRACT
ZBW_EXTRACT is the name of the structure.
What should i do in this case ?
Thanks,
Satya

Hi,
I went to se80. Copied the function module "RSAX_BIW_GET_DATA_SIMPLE" to my function group. When i tried to change the associated type from "SFLIGHT" to my own structure, it again gives a warning that "TABLES parameters are obsolete!". It does not allow me to either save, check or activate the function module. What should i do ?
Please reply urgently.
Thanks,
Satya

F1 & F2 interfaces in generic extractors using function module

Hi experts,
I created generic extractor using copy of function module RSAX_BIW_GET_DATA_SIMPLE with Delta capability. In ROOSOURCE, DataSource Extraction Method showing as F2. I checked In some blogs that we need to change the DataSource Extraction Method in ROOSOURCE table from F2 to F1 using test program . here my concern is:
1) What is meant by complete(F1) and simple(F2) interface, where our generic DataSource differs with this interface?
2) Do we need to change it from F2 to F1 in my case?
Many thanks,
Zakir.

Here is the difference between an F1 interface and a F2 interface (more importing parameters for the F1 interface):
Interface F1 :
FUNCTION BUPA_CCARD_EXTRACT_BW.
""Lokale Schnittstelle:
*" IMPORTING
*"     VALUE(I_REQUNR) TYPE SBIWA_S_INTERFACE-REQUNR
*"     VALUE(I_CHABASNM) TYPE SBIWA_S_INTERFACE-CHABASNM OPTIONAL
*"     VALUE(I_MAXSIZE) TYPE SBIWA_S_INTERFACE-MAXSIZE OPTIONAL
*"     VALUE(I_INITFLAG) TYPE SBIWA_S_INTERFACE-INITFLAG OPTIONAL
*"     VALUE(I_UPDMODE) TYPE SBIWA_S_INTERFACE-UPDMODE OPTIONAL
*"     VALUE(I_DATAPAKID) TYPE SBIWA_S_INTERFACE-DATAPAKID OPTIONAL
*"     VALUE(I_S_TIMEINT) TYPE SBIWA_S_TIMEINT OPTIONAL
*"     VALUE(I_READ_ONLY) TYPE RSONLYREAD OPTIONAL
*" TABLES
*"      I_T_SELECT TYPE SBIWA_T_SELECT OPTIONAL
*"      I_T_FIELDS TYPE SBIWA_T_FIELDS OPTIONAL
*"      E_T_BUS0CC_BW STRUCTURE BUS0CC_BW OPTIONAL
*" EXCEPTIONS
*"      NO_MORE_DATA
*"      ERROR_PASSED_TO_MESS_HANDLER
Interface F2 :
FUNCTION RSVL_CHARNO_GET_MASTER_DATA.
""Lokale Schnittstelle:
*"       IMPORTING
*"             VALUE(I_DSOURCE) TYPE SRSC_S_IF_SIMPLE-DSOURCE
*"                             OPTIONAL
*"             VALUE(I_INITFLAG) LIKE RSAAPI_IF-INITFLAG OPTIONAL
*"             VALUE(I_MAXSIZE) TYPE SRSC_S_IF_SIMPLE-MAXSIZE
*"                             OPTIONAL
*"             VALUE(I_REQUNR) TYPE SRSC_S_IF_SIMPLE-REQUNR OPTIONAL
*"       TABLES
*"              I_T_SELECT STRUCTURE RSSELECT OPTIONAL
*"              I_T_FIELDS STRUCTURE RSFIELDSEL OPTIONAL
*"              E_T_DATA STRUCTURE ROVERCHAR OPTIONAL
*"       EXCEPTIONS
*"              NO_MORE_DATA
*"              ERROR_PASSED_TO_MESS_HANDLER
The function module you copy (RSAX_BIW_GET_DATA_SIMPLE) seems actually more compatible with the F1 interface than the F2 (due to the I_REQUNR parameter).
So yes, I think you should switch your interface type to F1.
Regards,
Fred

Error occurred while loading Generic extraction using Function module

Hi all
I'm trying to do INIT for Generic Extractor using Function module, but i'm getting error as "Error occurred in the source system"
Error message from the source system
Diagnosis
An error occurred in the source system.
System Response
Caller 09 contains an error message.
Further analysis:
The error occurred in Extractor .
Refer to the error message.
Procedure
How you remove the error depends on the error message.
Note
If the source system is a Client Workstation, then it is possible that the file that you wanted to load was being edited at the time of the data request. Make sure that the file is in the specified directory, that it is not being processed at the moment, and restart the request.
Job terminated in source system --> Request set to red
Message no. RSM078
Can u help plz....

Hi Vishnu
This are the Job log details i found in source system...Can u tell what whould be the problem?
Message
Job started
Step 001 started (program SBIE0001, variant &0000000002861, user ID
Asynchronous transmission of info IDoc 2 in task 0001 (0 parallel tasks)
DATASOURCE = ZYFI102
RLOGSYS    =
REQUNR     = REQU_D9Y4CZDQULRIHRRVU33KOLQZO
UPDMODE    = D
LANGUAGES = *
         Current Values for Selected Profile Parameters               *
abap/heap_area_nondia......... 0                                       *
abap/heap_area_total.......... 10737418240                             *
abap/heaplimit................ 40000000                                *
zcsa/installed_languages...... DE                                      *
zcsa/system_language.......... E                                       *
ztta/max_memreq_MB............ 2047                                    *
ztta/roll_area................ 3000000                                 *
ztta/roll_extension........... 2000000000                              *
No authorization for Acct type D
Job cancelled after system exception ERROR_MESSAGE
Thanks in advance
Edited by: MohanDP on Feb 25, 2011 11:58 AM
Edited by: MohanDP on Feb 25, 2011 12:01 PM

Generick Extarction using Function Module.

Hi,
Give me the steps Generic Extraction using function module.Thanks for your help.
Thanks & Regards,
Suresh.

Hi,
Check the below threads:
Using function module as the generic extractor
Generic Delta Update using Function Module
Document regarding R/3 extractors using function module/user exits
Generic extractors using FM
Also refer the document:
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/d3219af2-0c01-0010-71ac-dbb4356cf4bf
Reg
Pra

R/3 Master Data Extraction Using Function Module

Hi Experts,
Could you please let me know why & How (Detail procedure) to extract R/3 master data using function module.
My team manager asked me to extract master data from R/3 for 3 more attributes of info object '0material' which is already defined as data target.
I would like to know why they are extracting data using function module
Thanks

The steps for creating extractor using Function Module. I
1. Create new Function group (if you have already not done so) in Se80
2. Copy Function module "RSAX_BIW_GET_DATA_SIMPLE" with suitable name.
3. Change the code that populate data.
Following table may give you the guideline for parameters.
Parameter Description
I_REQUNR (import) BW provides this request identifier. It is a system-generated identifier in the form REQU_XXXXXX. BW uses this same identifier in all function module calls that relate to a single load.
I_DSOURCE (import) The name of the generic extractor
I_MAXSIZE (import) The maximum number of records that BW expects to be in each data packet
I_INITFLAG (import) A Boolean flag that indicates if this is the initialization (first) call to the function module
I_READ_ONLY (import) A test flag not needed in most extraction scenarios
I_T_SELECT (table) This table holds any selections from the BW InfoPackage. The function module should examine these selections and only return data that matches the selections.
I_T_FIELD (table) This table holds the fields that BW requests
E_T_DATA (table) The function module fills this table with data records. These records then return to BW as data packets. This table has the same structure as the extract structure defined in the generic DataSource.
NO_MORE_DATA (exception) The function module raises this exception when no more data is available
ERROR_PASSED_TO_MESS_HANDLER (exception) The function module raises this exception if an error occurred during the extraction. It alerts BW to check for error logs.
Change following code to put the selection fields
Select ranges
RANGES: L_R_CARRID FOR SFLIGHT-CARRID,
L_R_CONNID FOR SFLIGHT-CONNID.
Change following to populate data
OPEN CURSOR WITH HOLD S_CURSOR FOR
SELECT (S_S_IF-T_FIELDS) FROM SFLIGHT
WHERE CARRID IN L_R_CARRID AND
CONNID IN L_R_CONNID.
ENDIF. "First data package ?
Fetch records into interface table.
named E_T_'Name of extract structure'.
FETCH NEXT CURSOR S_CURSOR
APPENDING CORRESPONDING FIELDS
OF TABLE E_T_DATA
PACKAGE SIZE S_S_IF-MAXSIZE.
below links
Re: functionmodule
Re: FM for G. extractor
***Assign points if it helps.**
Regards
CSM Reddy

Delta Extraction Using Function Module ( Customization )

Dear Experts,
I want a sample code for Delta Extraction using Function Module ( If it is customized already working code very helpful ), I have already created Function Module but Full update is happening. If I give delta update again it is retrieving all records. It is very urgent, if you have please send me to the following mail ID.
[email protected]
Best Regards,
SGK.

Hi SGK,
I've done this for a delta based on a timestamp and it's actually pretty easy. The basic steps are:
1) Create an extract structure in SE11. Make sure the structure has a date or timestamp field in it that you can use for delta. You'll need to include the field twice if you also want to extract it to BW/BI since once it's chosen as the delta field then it will be hidden in the interface.
2) Create the extractor function module in SE37. You can use RSAX_BIW_GET_DATA_SIMPLE as a template. Make sure your logic restricts the data it retrieves according to the selections that are passed in I_T_SELECT, including restrictions on the delta field.
3) Create a generic DataSource in RSO2. Click Extraction by FM then fill in your extract structure and function module. Click Generic Delta and pick your delta field and the appropriate radio button (time stamp or calendar day). If your delta field is a timestamp field then be sure to set the upper and lower safety limits to -86400 and 86400 respectively. This might not be necessary on your version of SAPI but on mine there is a bug where it doesn't translate between system time and UTC (GMT) correctly so this was necessary.
You don't need to program any special delta handling logic in your function module as long as you restrict the data you retrieve based on the delta field (I_T_SELECT). This is because the SAPI takes care of catching the init, delta and repeat requests, translating them to the appropriate delta field values, and then passing them to your function module as if it was a full extraction for a specific date or timestamp range.
Hope this helps!
Jason

Error in Data selection in R/3 Generic Extraction Using function Modules

Hi Friends,
I have created a a generic data source using function module to load data from PA0000 and PA0001 Tables ,Function module is working fine when i execute it indipendently and the data source is also working fine when i extract data using RSA3. it is showing correct no of records 157.
When loading data into DSO from BW (using 3.x/7.0 flows) data is comming to PSA all 157 records but in the RSMO the load status is showing yellow when i look into the step by step analysis it is
data selection successfully started
Data selection successfully ended
All Data packets completed.
are showing in red.
after and hour time load getting failed and in the error message it is showing " job terminated in source system---> Request set to red"
it is giving this message wir no RSM 78.
Please let me know it

Hi Jerry,
Thanks for the immediate replay
But here in my source system job is getting terminated.
this is the status of job in Job logs.
the job is running till this step not going ahead.
Call customer enhancement BW_BTE_CALL_BW204010_E (BTE) with 157 records
Result of customer enhancement: 157 records
Call customer enhancement EXIT_SAPLRSAP_001 (CMOD) with 301 records
Result of customer enhancement: 157 records
Asynchronous send of data package 000001 in task 0002 (1 parallel tasks)
pl. update me if any idea.

Error message when using function module HRIQ_TESTRESULTS_CREATE

Hi,
I need your help, I'm trying to use function module HRIQ_TESTRESULTS_CREATE to create external test results, I've used this function before without subscores, now I need to create subscores, but I get the message: "Grading scale UBID applies".
The test type EXAM_UB_ING has assigned the UBID academic scale, which has a range from 1 to 677. Test type EXAM_UB_ING has 3 subtests (grammar, listening and reading) which also have the UBID academic scale assigned.
I think this isn't a customizing problem because I can create test results with subscores using the PIQST00 transaction, the error message happens just when using the function module.
I'm using this import parameters:
STUDENT:
PL:           01
OT:          ST
OBJID:     Student ID
TESTRESULTS_HEADER:
ISSUEDATE                      08.02.2010
VALIDDATE                      30.04.2010
TEST_GUID
TESTEO                         50000269
TRANSEO                        00000000
TESTTYPE                       EXAM_UB_ING
SESSIONID                      T1
SESSIONYEAR                    2010
ENTRYDATE                      08.02.2010
TESTPASSFAIL
TESTTOTRES                     458
TESTSCALE_ID
TOTALPERCENT1                   0,00
TOTALPERCENT2                   0,00
ENTRYMODE
SUBTY
Table TESTRESULTS_SUBSCORES:
SUBTESTID            GRAMMAR
SUBTESTTRES      GRAMMAR
SUBT                     203
SUBTESTID            READING
SUBTESTTRES      READING
SUBT                     120
Does anybody know which could be the error? Or any other function module which I can use? (with HRIQ_TESTRESULTS_PROCESS_DATA I get the same error message).
Thanks in advance!
Araceli

Araceli,
I just noticed. You are populating SUBTESTSCALE_ID in subtest result structure.That's the reason it's throwing this error. it is trying to match Scale ID from test with value in sub test result scale ID.
Prabhat Singh

Creation of Generic Data source using function module based on the program which was used to created ABAP report

Hi,
We have a requirement to create a BI report based on plant maintenance report. The plant maintenance report is based on a ABAP program with complex logic. My question is i want create a Generic Datasource using Function module and can I include the logic(Abap Program) that is used for plant maintenance report in the function module? Please share your thoughts.
Thanks,
Ravi

Hi,
Step1-Create a table structure which you need to create same as the fields you require in you data source.
Step 2-create a custom abap program and inside that call the Client abap program with the selections as required and save the result data in some table
Step 3-create infoset query.In the infoset query give your table structure name and program name which you developed.
Step4-create data source on top of that query

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