Suva Programming: SAP Program to fetch data from standard table vbap by filtering out data by input in the parameter matnr in selection screen

Program:

REPORT ZSM_SMART_FORM.

TYPES: BEGIN OF str,
  vbeln type vbap-vbeln,
  posnr TYPE vbap-posnr,
  matnr TYPE vbap-matnr,
  netwr TYPE vbap-netwr,
  END OF str.

PARAMETERS: matnr TYPE vbap-matnr.

DATA: it TYPE STANDARD TABLE OF str.

select vbap~vbeln vbap~posnr vbap~matnr vbap~netwr FROM vbap into TABLE it UP TO 20 ROWS  WHERE matnr = ' '.

  CALL FUNCTION '/1BCDWB/SF00000490'
*   EXPORTING
*     ARCHIVE_INDEX              =
*     ARCHIVE_INDEX_TAB          =
*     ARCHIVE_PARAMETERS         =
*     CONTROL_PARAMETERS         =
*     MAIL_APPL_OBJ              =
*     MAIL_RECIPIENT             =
*     MAIL_SENDER                =
*     OUTPUT_OPTIONS             =
*     USER_SETTINGS              = 'X'
*   IMPORTING
*     DOCUMENT_OUTPUT_INFO       =
*     JOB_OUTPUT_INFO            =
*     JOB_OUTPUT_OPTIONS         =
    TABLES
      zsm_internal_five          = it
*   EXCEPTIONS
*     FORMATTING_ERROR           = 1
*     INTERNAL_ERROR             = 2
*     SEND_ERROR                 = 3
*     USER_CANCELED              = 4
*     OTHERS                     = 5
            .
  IF sy-subrc <> 0.
* Implement suitable error handling here
  ENDIF.