Character conversion problems when calling FM via RFC from Unicode ECC 6.0?

Hi all,
I faced a Cyrillic character convertion problem while calling an RFC function from R/3 ECC 6.0 (initialized as Unicode system - c.p. 4103). My target system is R/3 4.6C with default c.p. 1500.
The parameter I used in my FM interface in target system is of type CHAR10 (single-byte, obviously).
I have defined rfc-connection (SM59) as an ABAP connection and further client/logon language/user/password are supplied.
The problem I faced is, that Cyrillic symbols are transferred as '#' in the target system ('#' is set as default symbol in RFC-destination definition in case character convertion error is met).
Checking convertions between c.p. 4103  and target c.p. 1500 in my source system using tools of transaction i18n shows no errors - means conversion passed O.K. It seems default character conversion executed by source system whithin the scope of RFC-destination definition is doing something wrong.
Further, I played with MDMP & Unicode settings whithin the RFC-destination definition with no successful result - perhaps due to lack of documentation for how to set and manage these parameters.
The question is: have someone any experience with any conversion between Unicode and non-Unicide systems via RFC-call (non-English target obligatory !!!), or can anyone share valuable information regarding this issue - what should be managed in the RFC-destination in order to get character conversion working? Is it acceptable to use any character parameter in the target function module interface at all?
Many thanks in advance.
Regards,
Ivaylo Mutafchiev
Senior SAP ABAP Consultant

hey,
I had a similar experience. I was interfacing between 4.6 (RFC), PI and ECC 6.0 (ABAP Proxy). When data was passed from ECC to 4.6, RFC received them incorrectly. So i had to send trimmed strings from ECC and receive them as strings in RFC (esp for CURR and QUAN fields). Also the receiver communication channel in PI (between PI and  RFC) had to be set as Non unicode. This helped a bit. But still I am getting 2 issues, truncation of values and some additional digits !! But the above changes resolved unwanted characters problem like "<" and "#". You can find a related post in my id. Hope this info helps..

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      5  :r:=output;
      6* end;
    SQL> /
    declare
    ERROR at line 1:
    ORA-00604: error occurred at recursive SQL level 1
    ORA-00900: invalid SQL statementWhats wrong with my code ?
    Are there any restriction I'm not aware of ?
    Regards
    GregG

    GregG wrote:
    What should my code look like now ?
    Should I rewrite this as function returning index by collection or something ?You can use DBMS_SQL - but use the remote package and not the local one. This is a little bit more complex ito call interface than using a ref cursor, but is the very same thing on the server side. DBMS_SQL also provides a more comprehensive set of features than using the ref cursor interface.
    The main issue though is additional coding - as DBMS_SQL is a lower level interface (a lot closer to the real Oracle Call Interface/OCI):
    --// on remote database the procedure returns a DBMS_SQL cursor instead of a ref cursor
    SQL> create or replace procedure FooProc( cur in out number, deptID number ) is
      2          rc      number;
      3  begin
      4          cur := DBMS_SQL.open_cursor;
      5 
      6          DBMS_SQL.parse(
      7                  cur,
      8                  'select ename from emp where deptno = :deptID',
      9                  DBMS_SQL.native
    10          );
    11 
    12          DBMS_SQL.Bind_Variable( cur, 'deptID', deptID );
    13 
    14          rc := DBMS_SQL.Execute( cur );
    15  end;
    16  /
    Procedure created.
    --// from the local database side we call this remote proc
    SQL> declare
      2          c               number;  --// instead of using sys_refcursor
      3          empName         varchar2(10); --// buffer to fetch column into
      4  begin
      5          FooProc@testdb( c, 10 );  --/ call the proc that creates the cursor
      6 
      7          --// we need to define our fetch buffer for the 1st column in the
      8          --// SQL projection of that cursor (10 byte fetch buffer for 1st column)
      9          DBMS_SQL.define_column@testdb( c, 1, empName, 10 );
    10 
    11          --// we now fetch from this cursor, but via the DBMS_SQL
    12          --// interface
    13          loop
    14                  --// fetch the row (exit when 0 rows are fetched)
    15                  exit when DBMS_SQL.Fetch_Rows@testdb( c ) = 0;
    16 
    17                  --// copy value of 1st column in row into the local PL/SQL buffer
    18                  DBMS_SQL.column_value@testdb( c, 1, empName );
    19 
    20                  --// record value it via dbms output
    21                  DBMS_OUTPUT.put_line( 'name='||empName||' deptID=10' );
    22          end loop;
    23 
    24          --// close it explicitly as you would a ref cursor
    25          DBMS_SQL.Close_Cursor@testdb( c );
    26  end;
    27  /
    name=CLARK deptID=10
    name=KING deptID=10
    name=MILLER deptID=10
    PL/SQL procedure successfully completed.
    SQL>

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