How to use BOL Query Service in CRM 7.0

This simple program is used to demonstrate how to use SAP BOL Query service in CRM 7.0

The Code :
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*&---------------------------------------------------------------------*
*& Report  ZTEST_SB_BOL_READ
*&
*&---------------------------------------------------------------------*
*&***********DEMO Code for http://abap-explorer.blogspot.com/***********
*&
*&---------------------------------------------------------------------*
 
REPORT  ztest_sb_bol_read.
DATA :v_bol_core TYPE REF TO cl_crm_bol_core,
      v_qs TYPE REF TO cl_crm_bol_query_service,
      v_iterator TYPE REF TO if_bol_entity_col_iterator,
      v_search_result_coll TYPE REF TO if_bol_entity_col,
      v_btorder TYPE REF TO cl_crm_bol_entity,
      v_btheader TYPE REF TO cl_crm_bol_entity.
 
DATA: wa_btADMINH TYPE CRMST_ADMINH_BTIL,
      i_btadminh TYPE STANDARD TABLE OF CRMST_ADMINH_BTIL INITIAL SIZE 0.
 
DATA: v_alv TYPE REF TO cl_salv_table,
      v_columns TYPE REF TO cl_salv_columns_table.
 
PARAMETERS: p_bp TYPE bu_partner OBLIGATORY.
 
AT SELECTION-SCREEN OUTPUT.
  DATA: l_i_seltexts TYPE STANDARD TABLE OF rsseltexts INITIAL SIZE 0,
        l_wa_seltexts TYPE rsseltexts.
 
  CLEAR l_wa_seltexts.
  l_wa_seltexts-name = 'P_BP'.
  l_wa_seltexts-kind = 'P'.
  l_wa_seltexts-text = 'Business Partner'.
  APPEND l_wa_seltexts TO l_i_seltexts.
 
  CALL FUNCTION 'SELECTION_TEXTS_MODIFY'
    EXPORTING
      program                     = sy-repid
    TABLES
      seltexts                    = l_i_seltexts
    EXCEPTIONS
      program_not_found           = 1
      program_cannot_be_generated = 2
      OTHERS                      = 3.
  IF sy-subrc <> 0.
    MESSAGE ID sy-msgid TYPE sy-msgty NUMBER sy-msgno
            WITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
  ENDIF.
 
START-OF-SELECTION.
 
  v_bol_core = cl_crm_bol_core=>get_instance( ).
  v_bol_core->start_up( 'CRMIC_DEFAULT' ).
  v_qs = cl_crm_bol_query_service=>get_instance( 'BTQuery1O' ).
 
  CALL METHOD v_qs->set_property
    EXPORTING
      iv_attr_name = 'BP_NUMBER'
      iv_value     = p_bp.
 
  v_search_result_coll = v_qs->get_query_result( ).
  IF v_search_result_coll IS BOUND.
    v_iterator = v_search_result_coll->get_iterator( ).
  ENDIF.
  IF v_iterator IS BOUND.
    v_btorder = v_iterator->get_first( ).
  ENDIF.
 
  WHILE v_btorder IS BOUND.
    v_btheader = v_btorder->get_related_entity( 'BTOrderHeader' ).
    v_btheader->get_properties( IMPORTING es_attributes = wa_btadminh ).
 
      APPEND wa_btadminh TO i_btadminh.
    v_btorder = v_iterator->get_next( ).
  ENDWHILE.
 
END-OF-SELECTION.
 
  IF i_btadminh IS NOT INITIAL.
 
    TRY.
        CALL METHOD cl_salv_table=>factory
          IMPORTING
            r_salv_table = v_alv
          CHANGING
            t_table      = i_btadminh.
      CATCH cx_salv_msg .                               "#EC NO_HANDLER
 
    ENDTRY.
 
    v_columns = v_alv->get_columns( ).
    v_columns->set_optimize( abap_true ).
    v_alv->display( ).
 
 
  ELSE.
    MESSAGE i001(00) WITH 'No data found!'.
    LEAVE LIST-PROCESSING.
  ENDIF.

When tested :