BAPI_PO_CREATE1 not able to create PO's for multiple rows from the flat fil

Question

Hi
i am uploading PO's from a flat file into SAP using the BAPI_PO_CREATE1. Everything works fine if the flat file hast only one record.
if the flat file has more than one record then while loading the second record the BAPI returns a error message. I am calling the BAPI in a loop.
The strange thing is that if i load the second record individually the program is able to create the PO. So only when i have multiple records in the flat file i am unable to load the PO into SAP. I debugged and checked all the internal tables passed to the BAPI. All seems to have the data correctly but still the BAPI fails.
any idea where i am going wrong?
the code looks something like this.
LOOP AT HEADER_ITAB.
   PERFORM FILL_HEADER_RECORDS.
LOOP AT ITEM_ITAB WHERE EBELN eq HEADER_ITAB-EBELN.
     PERFORM FILL_ITEM_RECORDS.
ENDLOOP.
  PERFORM CERATE_PO_VIA_BAPI.
ENDLOOP.

Answer 1

What is the error message. Are you trying something like this:
    LOOP AT T_DATA1.
      AT NEW LIFNR.
        READ TABLE T_DATA1 INDEX SY-TABIX.
        PERFORM INIT_TABLES.
        PERFORM FILL_DATA.
--Call the BAPI to create PO
        PERFORM CREATE_PO.
      ENDAT.
    ENDLOOP.
FORM CREATE_PO .
  CALL FUNCTION 'BAPI_PO_CREATE1'
    EXPORTING
      POHEADER                     =   POHEADER
      POHEADERX                    =   POHEADERX
    POADDRVENDOR                 =
    TESTRUN                      =
    MEMORY_UNCOMPLETE            =
    MEMORY_COMPLETE              =
    POEXPIMPHEADER               =
    POEXPIMPHEADERX              =
    VERSIONS                     =
    NO_MESSAGING                 =
    NO_MESSAGE_REQ               =
    NO_AUTHORITY                 =
    NO_PRICE_FROM_PO             =
   IMPORTING
     EXPPURCHASEORDER             =  EXPPURCHASEORDER
     EXPHEADER                    =  EXPHEADER
     EXPPOEXPIMPHEADER            =  EXPPOEXPIMPHEADER
   TABLES
     RETURN                       =  RETURN
     POITEM                       =  POITEM
     POITEMX                      =  POITEMX
    POADDRDELIVERY               =
     POSCHEDULE                   =  POSCHEDULE
     POSCHEDULEX                  =  POSCHEDULEX
     POACCOUNT                    =  POACCOUNT
    POACCOUNTPROFITSEGMENT       =
     POACCOUNTX                   =  POACCOUNTX
    POCONDHEADER                 =
    POCONDHEADERX                =
     POCOND                       =  POCOND
     POCONDX                      =  POCONDX
    POLIMITS                     =
    POCONTRACTLIMITS             =
    POSERVICES                   =
    POSRVACCESSVALUES            =
    POSERVICESTEXT               =
    EXTENSIONIN                  =
    EXTENSIONOUT                 =
    POEXPIMPITEM                 =
    POEXPIMPITEMX                =
    POTEXTHEADER                 =
      POTEXTITEM                   = POTEXTITEM
    ALLVERSIONS                  =
     POPARTNER                    =  POPARTNER
  CALL FUNCTION 'BAPI_TRANSACTION_COMMIT'
    EXPORTING
      WAIT   = 'X'
    IMPORTING
      RETURN = RETURN1.
  DATA: L_NAME TYPE LFA1-NAME1.
  CLEAR L_NAME.
  SELECT SINGLE NAME1
           FROM  LFA1
           INTO L_NAME
           WHERE LIFNR = POHEADER-VENDOR.
  LOOP AT RETURN.
    WRITE : / RETURN-TYPE,
              RETURN-ID,
              RETURN-MESSAGE.
    WRITE : '--> For vendor:',
             POHEADER-VENDOR,
             L_NAME.
  ENDLOOP.
ENDFORM.                    " CREATE_PO