Error in Synchronous client proxy

Question

Hi Gurus,
I have created a scenario in which I am using client proxy at source side (ECC ) and soap at target side.
Its a synchronous scenario for which I have written an abap report.This interface sends a company name and uses a webservice to fetch the stock value of that company.
I am a beginner in abap, so I am unable to to know the reason why is it showing the following error when I am executing the code.
Method "EXECUTE_SYNCHRONOUS" is unknown or PROTECTED or PRIVATE.
This error is coming at line :
CALL METHOD Proxy->execute_synchronous
Following is the code :
REPORT  ZSYNC_PROXY_STOCKQUOTE NO STANDARD PAGE HEADING.
DATA Proxy TYPE REF TO ZCO_SI_SOURCE.
CREATE OBJECT Proxy.
DATA: t_company_name TYPE zsource_request_mt,
       t_stock_value TYPE zsource_response_mt.
SELECTION-SCREEN: BEGIN OF BLOCK B1.
PARAMETER: p_id TYPE String.
SELECTION-SCREEN: END OF BLOCK B1.
  START-of-selection.
  TRY.
    t_company_name-Source_Request_MT-Company_name = p_id.
    CALL METHOD Proxy->execute_synchronous
    Exporting
      output = t_company_name
   IMPORTING
     input = t_stock_value.
   WRITE: t_stock_value-Source_Response_MT-stock_value.
   CATCH cx_ai_system_fault.
     DATA fault TYPE REF TO cx_ai_system_fault.
     CREATE OBJECT FAULT.
    WRITE:/ fault->errortext.
    ENDTRY.
    END-OF-SELECTION.

Answer 1

Hi,
You have wrongly assigned the method. It should not be pointing to Execute method.
it should be something like below
TRY.
           CREATE OBJECT proxy.
           CATCH cx_ai_system_fault.
  ENDTRY.
TRY.
    CALL METHOD Proxy->  " GIVE THE OUTBOUND SERVICE INTERFACE NAME HERE"
    Exporting
      output = t_company_name
   IMPORTING
     input = t_stock_value.