SAP BDC Interview Questions & Answers

  1. Question 1. If I Want To Execute A Program Only In Background Not In Foreground Is There Any Option For This?

    Answer :

    In Session method, in SM35 when you process the batch, you need to select the radio button Background, so it will run in background. In call transaction you need to mention the Mode value as N (no screen), so that it will run in background.

  2. Question 2. Where Can You Find Error Log For Call Transaction?

    Answer :

    1. Declare it_bdcmsgcoll type bdcmsgcoll.
    2. Declare to hold messages like Message (100) and w_msg TYPE bdcmsgcoll,
    3.  Call transaction like below
      CALL TRANSACTION MM01 USING IT_BDCDATA UPDATE S MESSAGES INTO IT_BDCMSGCOLL.
    4. IF SY-SUBRC <> 0.
    5. loop at it_bdcmsgcoll into wa_bdcmsgcoll where w_msg = E;.
      CALL FUNCTION MESSAGE_TEXT_BUILD
      EXPORTING
      msgid = wa_bdcmsgcoll-msgid
      msgnr = wa_bdcmsgcoll-msgnr
      msgv1 = wa_bdcmsgcoll-msgv1
      msgv2 = wa_bdcmsgcoll-msgv2
      msgv3 = wa_bdcmsgcoll-msgv3
      msgv4 = wa_bdcmsgcoll-msgv4
      IMPORTING
      message_text_output = w_message.
    6. FM will genrate meaningful Error Discription :w_message.
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  4. Question 3. How To Write A Code For Multiple Transactions?

    Answer :

    you should Write BDC_Insert Function module Twice. Remaining Function modules like BDC_group_open and BDC_close_group should be write once there…you can pass two or more transaction code in BDC_insert function module.

  5. Question 4. Power Is Interrupted While Transferring Data From Internal Table To Application Server. How Will You Determine Many Records Are Transferred In Session Method And Call Transaction Method?

    Answer :

    Check no. of records already updated and delete them from input file and run BDC again.

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  7. Question 5. How Do You Send Files To The Legacy Systems From Sap And Vice Versa? How Does One Know That The Legacy Files Have Come On To The Sap Server You Are Working On?

    Answer :

    BDC is used to transfer the data from legacy system to SAP system & vice versa…

    We can send the files from SAP to legacy system thru datasets (open dataset for output…) & GUI_download (F’n Module)..

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  9. Question 6. What Is The Structure Of Bdcmsgcoll?

    Answer :

    Go to se11 and enter bdcmsgcoll in database table filed and click on display it will displayed all the fields that are existing in the bdcmsgcall structure.

  10. Question 7. While Doing Bdc Exp Va01 Transaction Sometime In The Item Level Data Shows Only 4 Items And Other Times It Will Show 6 Line Items, How Will You Maintain This Kind Of Screen Resolutions Scenerio?

    Answer :

    Fill the CTUPARAM structure for Screen resolutions , and call this structure using options from CTUPARAM in Call Transaction Syntax

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  12. Question 8. How To Handle Error In Session Method?

    Answer :

    In session method the system automatically handled the error.goto sm35select the session name ,then select the analysis tab button in the top after that select the Log created, Here we can see the error record.

  13. Question 9. What Should Be The Approach For Writing A Bdc Program?

    Answer :

    1. Create recording
    2. Transfer the data from legacy system to internal term
    3. From internal table transfer the data to BDC structure
    4. Create session or use call transaction method to update data to database table.
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  15. Question 10. What Are The Types Of Records That Are Transferred To Sap R/3 And Used By Interfaces?

    Answer :

    Any type of records can be transferred to SAP R/3

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  17. Question 11. Explain About Sap Fico Testing And The Tools Used?

    Answer :

    If you want to do FICO testing, you need to know the FICO process in SAP and also need to be familiar with the T-Codes and their functionality. A bit of Configuration knowledge is also required to test FICO.

    Tools: LSMW and BDC tools willl be used for data migration and loading the transactional/Master data in SAP.

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  19. Question 12. How Can We Use Multiple Transactions By Using Bdc_insert?

    Answer :

    In the function module t-code here mention transaction code, and dynprotab here mentioning internal table name ,calling no of times a FM and assing TCODE and INTERNALTABLENAME

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  21. Question 13. How To Write A Code In Tab Control?

    Answer :

    For tab control we have to use concatenate options in your coding.

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  23. Question 14. What Are The Table Controls In Bdc ? What Is The Difference Between Bdc And Lsmw ?what Is The Difference Between Bdc And Rfc ?

    Answer :

    BDC – Batch data communication in which there are 2 processes

    1. in bound
    2. outbound

    RFC – remote fucntion call(or) calling

  24. Question 15. What Is The Use Of Table Control In Bdc Is It Same In Module Pool Table Control?

    Answer :

    Yeah that table control is same as that used in module pool here we do recording

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  26. Question 16. How Do You Write Manual Bdc Session Method?

    Answer :

    Steps to create manual BDC session

    1. Use BDC_OPEN_GROUP to open the session
    2. loop on the internal table which you will use in transaction , stps of BDC transaction recording
      Use BDC_INSERT to insert 1 transaction in Session
      endloop
    3. Use BDC_CLOSE_GROUP to close the session .
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  28. Question 17. How Can We Handle Table Control In Bdc?

    Answer :

    We can handle table control using line index , 

    Line index indicates which line of Table control is to be use for BDC transaction,

    Ex –

    perform bdc_field using ‘RC29K-AUSKZ(01)’

    indicates 1st line of table control is going to be used for transaction which is Line index of Table Control 

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  30. Question 18. Update Types In Call Transaction Method. What Is The Difference ?

    Answer :

    Calltransaction update types:update types : S /A/LS-SYNCHRONOUSA-ASYNCHRONOUSL-LOCAL MEMORYsynchronous mode is waiting for commit work and asynchronous is not waiting for commit work.

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  32. Question 19. Can We Handle Two Transaction Codes In The Same Program Using Call Transaction Bdc Input Method?

    Answer :

    No.

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  34. Question 20. Have You Set Up A Back Ground Job ? How To Create A Background Job Without A Variant ?

    Answer :

    Yes, user can create background job scheduling in two ways.

    1. By calling the executable program RSBDCSUB
    2. Transaction Code SM37
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  36. Question 21. What Is The Difference Between Rfc And Bapi Function Modules?

    Answer :

    BAPI’s are the remote enabled Function modules which are defined in the Business Object Repository (BOR) as the methods of the business objects.I can say BAPI is the subset of RFC. RFC connects to the other system via BAPI and vice versa.

  37. Question 22. What Is The Difference Between Upload And Ws_upload ?

    Answer :

    The diffrence between WS_Upload and Upload is when you use function Upload it prompts for a dailog box where in you need to key in the file location. Where as in case of WS_Upload you specify the file location in the function input parameters itself.

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  39. Question 23. How Can We Upload A Text File Having Delimiters In To Legacy System?

    Answer :

    For up loading?text file we use the pre-defined FM gui_upload. in that FM we have the parameter has_field_seperator, for that we assign the default delimiter ‘x’.

    ?????????? HAS_FIELD_SEPERATOR = ‘X’

    ‘X’ can provide the What ever delimiter we used in flat file for seperation.

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  41. Question 24. Why Lsmw Does Not Support Call Transaction Method?

    Answer :

    Lsmw is one time requirement call tr. doesn’t have log file. we have to maintain explicitly

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  43. Question 25. How Table Control Cn Be Generated Using Bdc?

    Answer :

    Using index

  44. Question 26. How To Transfer Data Into Line Items Using Batch Input Session Method?

    Answer :

    table controls

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  46. Question 27. Use If Idoc And Bapi?

    Answer :

    idoc is carry data from one server to other server,bapi can be used to update the data base table with legacy system data.

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  48. Question 28. How To Handle Errors In Call Transaction Bdc Method Without Using Bdcmsgcoll Internal Table?

    Answer :

    We can use session method logfile in call transaction.

    1. We have to send error records in to one internal table .
    2. Next for that itab u can use session method .
    3. with this u will get session method log file in call tran.
  49. Question 29. What Is The Difference Between Call Transaction And Session Method?

    Answer :

    Call trasaction method trasfers non sap data into sap immediately after completion of BDC, whereas session method creates the session and transfers data when user seesions it. It tranfers data one by one whereas trasaction method transfers data all together.

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  51. Question 30. How Do We Assign Dynamic Views While Creating Material Master And Generating Bdc?

    Answer :

    By defining the view index as like as table control Index value. Suppose if view is in 9th position value, then assign this value to index .

  52. Question 31. From Excel To Abap – Is Batch Mode Possible ?

    Answer :

    DATA  w_file TYPE string.
    * Convert the file path into string
      w_file = p_input.
    * Internal Table should have same field sequence as EXL File.
      CLEAR   t_upload.
      REFRESH t_upload.
    * Call function to upload the data into internal table
      CALL FUNCTION ‘GUI_UPLOAD’
        EXPORTING
          filename                = w_file
          filetype                = ‘ASC’
          has_field_separator     = ‘X’
        TABLES
          data_tab                = t_upload
        EXCEPTIONS
          file_open_error         = 1
          file_read_error         = 2
          no_batch                = 3
          gui_refuse_filetransfer = 4
          invalid_type            = 5
          no_authority            = 6
          unknown_error           = 7
          bad_data_format         = 8
          header_not_allowed      = 9
          separator_not_allowed   = 10
          header_too_long         = 11
          unknown_dp_error        = 12
          access_denied           = 13
          dp_out_of_memory        = 14
          disk_full               = 15
          dp_timeout              = 16
          OTHERS                  = 17.
      IF sy-subrc NE 0.
    *    MESSAGE ID sy-msgid TYPE sy-msgty NUMBER sy-msgno
    *            WITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
      ELSE.
    *   Delete the first row of heading from the uploaded table
        DELETE t_upload INDEX 1.
      ENDIF.       ” IF sy-subrc EQ 0.

  53. Question 32. How To Load Data From Ms Excel Sheet To Sap By Using Bdc Method ?

    Answer :

    Using function module UPLOAD or WS_UPLOAD or GUI_UPLOAD, but we need to give file type as ‘wxi’. OR use function module : alsm_excel_to_internaltable.

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  55. Question 33. What Is The Diffreence Between The Following.a) Bdc_open_group And Bdc_open_dataset.b) Bdc_close_group And Bdc_close_dataset?

    Answer :

    No function module named BDC_OPEN_DATASET is exist .

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