BAPI to create Sales Order with reference to Inquiry ??

Hi Experts ,

i want to create Sales Order with reference to inquiry , currently i am Using BAPI : BAPI_SALESORDER_CREATEFROMDAT2 , but it's giving me error as

"SD document 10000070 is not in the database or has been archived " type 'E' ID 'V1' number '302'.

"Sales document  was not changed"

10000070 is my inquiry number which i  am passing as reference number to BAPI.

when i try to execute this BAPI through se37  , it's creating sales order but not copying all data from inquiry and incomplete SO created .

my code is :

         IT_HEADER_IN-REFDOCTYPE = 'ZIND'.
         IT_HEADER_IN-DOC_TYPE = 'ZBDS'.
         IT_HEADER_IN-SALES_ORG = '1000'.
         IT_HEADER_IN-DISTR_CHAN = '10'.
         IT_HEADER_IN-DIVISION = '10'.
         IT_HEADER_IN-REF_DOC = '10000070'
         IT_HEADER_IN-REFDOC_CAT = 'A'.
         APPEND IT_HEADER_IN.

         IT_HEADER_INX-UPDATEFLAG = 'I'.
         IT_HEADER_INX-DOC_TYPE = 'X'.
         IT_HEADER_INX-SALES_ORG = 'X'.
         IT_HEADER_INX-DISTR_CHAN = 'X'.
         IT_HEADER_INX-DIVISION = 'X'.
         IT_HEADER_INX-REF_DOC = 'X'.
         IT_HEADER_INX-REFDOC_CAT = 'X'.
         APPEND IT_HEADER_INX.

         IT_PARTNERS-PARTN_ROLE = 'AG'.
         IT_PARTNERS-PARTN_NUMB = WA_VKORG-KUNNR.
         APPEND IT_PARTNERS.

         IT_PARTNERS-PARTN_ROLE = 'WE'.
         IT_PARTNERS-PARTN_NUMB = WA_VKORG-TS_CUST.
         APPEND IT_PARTNERS.



         CALL FUNCTION 'BAPI_SALESORDER_CREATEFROMDAT2'
           EXPORTING
*         SALESDOCUMENTIN               =
             ORDER_HEADER_IN               = IT_HEADER_IN
            ORDER_HEADER_INX               = IT_HEADER_INX
*         SENDER                        =
*         BINARY_RELATIONSHIPTYPE       =
*         INT_NUMBER_ASSIGNMENT         =
*         BEHAVE_WHEN_ERROR             =
*         LOGIC_SWITCH                  =
*         TESTRUN                       =
*         CONVERT                       = ' '
          IMPORTING
            SALESDOCUMENT                  = SO_NUM
           TABLES
             RETURN                        = IT_RETURN
*         ORDER_ITEMS_IN                =
*         ORDER_ITEMS_INX               =
             ORDER_PARTNERS                = IT_PARTNERS
*         ORDER_SCHEDULES_IN            =
*         ORDER_SCHEDULES_INX           =
*         ORDER_CONDITIONS_IN           =
*         ORDER_CONDITIONS_INX          =
*         ORDER_CFGS_REF                =
*         ORDER_CFGS_INST               =
*         ORDER_CFGS_PART_OF            =
*         ORDER_CFGS_VALUE              =
*         ORDER_CFGS_BLOB               =
*         ORDER_CFGS_VK                 =
*         ORDER_CFGS_REFINST            =
*         ORDER_CCARD                   =
*         ORDER_TEXT                    =
*         ORDER_KEYS                    =
*         EXTENSIONIN                   =
*         PARTNERADDRESSES              =
                   .
         IF SY-SUBRC = 0.

           CALL FUNCTION 'BAPI_TRANSACTION_COMMIT'
             EXPORTING
               WAIT   = 'X'
             IMPORTING
               RETURN = L_RETURN.


        
        ENDIF.

Please help me to resolve this .