ABC's of RFCs

Hello SAP experts,
Could you advise what workprocess resource is taken up when external application has does an RFC call to SAP, using background user to login?
Hope my understanding is correct:
1. RFC client (ext application) logs in using background user. This takes up 1 BTC workprocess.
2. Then, as SAP note says, 'RFC call is always processed by a dialog work process'. So, this means the BTC will be converted to a DIAlog to process data.
Not sure if my understanding is correct about RFC calls.
The confusion comes when CPIC is also in the picture whenever there is RFC. How are they related?
Could you enlighten me about the relationship between RFC, CPIC and the workprocesses that are occupied? Must workprocess be DIALOG and not BTC or either?
Secondly, I would like to understand how much resources does an RFC connection take up? Under what resource problems situation will RFC calls be unable to connect to SAP? Or caused by time-out? Where to look for clues when investigating? dev_rfc or dev_rd? Seems that dev_rfc is quite little info compared to dev_rd. What gives?
Thank you in advance.
Regards,
Pascal Gabin

Dear Jürgen,
So, can I say RFC calls Always will require Dialog workprocess to login? And when calling BAPI, the BAPI can process in batch or dialog processing whereby the respective workprocess will be occupied?
Pls help me little more to clarify. Thank you.
I've provided points for your useful info.
Best Regards,
Pascal Gabin

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call function YOUR FUNCTION MODUEL'
destination 'ABC' "<< your SM59 rfc destination name
exporting
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Hi,
While creating metadata in IDX2, I am getting communication error 'Error when opening an RFC connection' .
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Thanks,
Sridhar

HI
ALE SETTINGS TO POST IDOC OUT OF SAP R/3
We need to do the following settings in XI
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a)   Choose create
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c)   Select connection type as 3 and save
d)   In the technical settings tab enter the details SAP SID/URL and system number#
e)   Enter the Gateway host as same details above SID/URL
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g)   Select Message type
h)   Double click on Message Type and Then Enter the details for Receiving port, Pack size=1 and Basic type
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VIKAS

CPIC error when calling a external c program

Hi All,
i Have a scenario where we call a C-Program(RFC api) to connect to and external system thru tcp/ip.
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dev_rfc0
Trace file opened at 20091222 094649 TAIST, REL 46D,0,2464, VER 3
======> CPIC-CALL: 'ThSAPCMRCV' : cmRc=20 thRc=223
CPIC program connection ended (read error)
Error RFCIO_ERROR_SYSERROR in abrfcpic.c : 2961
CPIC-CALL: 'ThSAPCMRCV' : cmRc=20 thRc=223
CPIC program connection ended (read error)
dev_w0
Tue Dec 22 09:46:49 2009
***LOG R49=> tskh_receive, CPIC-Error (020223) [thxxhead.c   6003]
***LOG R5A=> tskh_receive, CPIC-Error (80600115) [thxxhead.c   6008]
***LOG R64=> tskh_receive, CPIC-Error ( CMSEND(SAP)) [thxxhead.c   6013]
RFC 2959 CONVID 80600115
CMRC=20 DATA=1 STATUS=1 SAPRC=223 ThSAPCMRCV
RFC> ABAP Programm: ABAPXXXX (Transaction: SE38)
RFC> User: abc (Client: 300)
RFC> Destination: APIRFC (handle: 1, convid , {4B2E49E2-A088-0082-E100-80003517BA61})
RFC> Called function module: RFC_API
dev_rd
Tue Dec 22 09:46:49 2009
***LOG S23=> GwDisconnectClient, client disconnected (029) [gwxxrd.c     10609]
***LOG S74=> GwDisconnectClient, client disconnected ( ijkl211) [gwxxrd.c     10620]
***LOG S0R=> GwDisconnectClient, client disconnected () [gwxxrd.c     10636]
***LOG S0I=> GwDisconnectClient, client disconnected ( interfac) [gwxxrd.c     10657]
In sm21
R49 Communication error, CPIC return code 020, SAP return code 223
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Thanks,Rajesh

Dear Rajesh,
This depends on what your program does. Based on the error message, it looks like the program ends abnormally, as the gateway writes an error while attempting to read/write data from the connection to the program. With what you have given, the error does not seem to lie with the SAP side. You will have to check your program, e.g. using a debugger.
Best Regards,
Tim

Error when creating connection with SSO Authentication mode

Hi All,
when I am creating the connection with Authentication Mode as SSO, I get error "Unable to connect to SAP BW Server User abc has no RFC Authorization for function group SYST".
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Regards,
Nisha

Yes, I have installed Integration Kit, and configured the SSO.
I am able to login into designer with Authentication as SAP.
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Nisha

RFC Error: Program not registered

Hi,
We are presently facing issue with our GTS (Quality) and Seeburger system RFC connection. While doing the testing we are getting error as below:
======> CPIC-CALL: 'ThSAPOCMINIT' : cmRc=2 thRc=679
Transaction program not registered
ABAP Programm: RSRFCPIN (Transaction: SM59)
User: TESTUSER (Client: 202)
Destination: SEEBURGER_RFC (handle: 2, , )
Error RFCIO_ERROR_SYSERROR in abrfcpic.c : 1501
CPIC-CALL: 'ThSAPOCMINIT' : cmRc=2 thRc=679
Transaction program not registered
DEST =SEEBURGER_RFC
HOST =%%RFCSERVER%%
PROG =BIS_ABC_202_DEV
GWHOST =ABC.XYZ.STU.com
GWSERV =sapgw15
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Thanks & Regards,
Manish

Hi Sunny,
Thank you for your suggestion, actually we have tried registration using rfcexec and it works fine.
BTW, we have managed to solve this issue by de-activate the IDoc receive & send modules of websap component and activate them again.
Thanks and Regards,
Nick

Receiver RFC adapter issue! Please help!

Hi Experts,
I have 4 XI interfaces. All of these are Webservice to RFC scenarios. Moreover all of them are synchronous.
Request message: Webservice (SOAP Adapter) ---> XI -
> RFc Adapter ---> ECC Function modules
Response message: Webservice (SOAP Adapter) <- XI < RFc Adapter <- ECC Function modules
As you can see above, external system calls XI web service via SOAP Adapter. The input data is then sent from SOAP Adapter to RFC adapter to call RFC function module in the receiving side. The receiving system is SAP ECC system.
The receiver ECC system has two instances. For example SP0 ad SP1.
In the receiver determination step we have maintained a rule such that if the Plant value in the input message is XYZ then send data to SP0. But if the plant value in ABC then send data to SP1.
This Conditional rule is working fine.
However we are getting couple of issues with only one instance of ECC (SP0).
1. com.sap.engine.interfaces.messaging.api.exception.MessageExpiredException: Message badfa070-b163-11de-a4c1-001cc495e48a(INBOUND) expired
2. NO_MAPPINGPROGRAM_FOUND. Mapping program is not available in runtime cache: Object ID C2B41FFDFD4635BAB1E41AE53C0D10CE Software Component 5394F420463611DAC1CFFBBC0A01BC16
3. com.sap.engine.interfaces.messaging.api.exception.MessagingException: No response available
The above listed errors are generated occasionally. Sometimes no errors are generated even when the same input data is sent again and message is successfully processed.
I have verified the input data and everything is OK with that.
Mapping object is available in XI and cache was also refreshed. I additionally reactivated the objects in XI as well.
So what could be the real root cause of this? Please help!
Thanks
Gopal

1. com.sap.engine.interfaces.messaging.api.exception.MessageExpiredException: Message badfa070-b163-11de-a4c1-
001cc495e48a(INBOUND) expired
Check the Timeout parameter of your adapter.....for requests which expire with this error confirm from the SAP end that the message processing is done well within the Timeout period of the adapter.
Refer this note for more info on the above occuring error and the possible way to avoid it: https://service.sap.com/sap/support/notes/791379
Update:
Even problem 3 seems to be occuring due to insufficient Timeout specified for the adapter.....if possible try increasing the Timeout in VA
Regards,
Abhishek.
Edited by: abhishek salvi on Oct 6, 2009 1:42 PM

Multiple receivers for same rfc msg type

I have a soap-XI-RFC scenario. I have to read the soap message and depending on the key field value, I have to send to two different SAP systems.
For EX:
Input Message:
<input_msgType>
<item>
      <Key>ABC-123452</Key>
      <value>test1</value>
</item>
<item>
      <Key>ABC-342222</Key>
      <value>test2</value>
</item>
<item>
       <Key>XYZ-676767</Key>
       <value>test2</value>
</item>
<item>
       <Key>XYZ-565655</Key>
       <value>test2</value>
</item>
</input_msgType>
Output Message1:
<BAPI_SEND_DATA>
   <item>
        <Key>ABC-123452</Key>
        <value>test1</value>
   </item>
   <item>
         <Key>ABC-342222</Key>
         <value>test2</value>
</item>
</BAPI_SEND_DATA>
Output Message2:
<BAPI_SEND_DATA>
    <item>
         <Key>XYZ-676767</Key>
         <value>test1</value>
    </item>
    <item>
          <Key>XYZ-565655</Key>
          <value>test2</value>
   </item>
</BAPI_SEND_DATA>
I have to send the same rfc request data to two sap systems..all the key with ABC starting Key should go to SAP system1
and all the key with XYZ key should go to SAP system 2.
Should I split the message in mapping - if so how can i do it? What kind of BPM steps should I do?
Can I do this in receiver determination itself using condition? THanks for suggestions and help..
Thilothama

Krishna Moorthy,
I came to a point where I decided that Java mapping would be the best for this. But do you have some sample starts for this??? I would appreciate if you can show me some light...
Would something like this help??
public void getPhonesById(String[] a, String[] b, String[] c, ResultList result, Container container){
Map map = (Map) container.getParameter("phones");
if (map == null){
map = new HashMap();
for (int i = 0; i<b.length; i++){ // if the payload is valid to xsd, b and c have equal length
    List list = (List) map.get(b<i>);
    if (list == null){
      list = new ArrayList();
      map.put(b<i>, list);
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container.setParameter("phones", map);
List list = (List)map.get(a[0]);
for (int i = 0; i< list.size(); i++) result.addValue((String) list.get(i));
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Thilothama
Message was edited by:
        Thilothama v

RFC lookup error

Hi all,
I am doing an RFC lookup to increment counter. I am facing a problem.
I followed the code written by Michael. https://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/a03e7b02-eea4-2910-089f-8214c6d1b439
My udf is as shown below: -
String content = "";
MappingTrace importanttrace;
importanttrace = container.getTrace();
java.util.Map param = container.getTransformationParameters();
String MSGID = (String) param.get (StreamTransformationConstants.MESSAGE_ID);
// filling the string with our RFC-XML (with values)
String m="<?xml version="1.0" encoding="UTF-8"?><ns0:_-GLB_-ZGT_RFBIBL00_COUNTER xmlns:ns0="urn:sap-com:document:sap:rfc:functions"><IM_V_FILENAME>CA10.NCH.FCIPAY04</IM_V_FILENAME><IM_V_MSGID>"MSGID"</IM_V_MSGID><IM_V_WRNO>DEVWR0001725</IM_V_WRNO></ns0:_-GLB_-ZGT_RFBIBL00_COUNTER>";
importanttrace.addWarning("Input value is "+m);
RfcAccessor accessor = null;
ByteArrayOutputStream out = null;
try
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Channel channel = LookupService.getChannel(receiverBS,"CC_RFC_RCV_AMS_R3F_DEVWR001725");
// 2. Get a RFC accessor for a channel.
accessor = LookupService.getRfcAccessor(channel);
// 3. Create a xml input stream representing the function module request message.
InputStream inputStream = new ByteArrayInputStream(m.getBytes());
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XmlPayload payload = LookupService.getXmlPayload(inputStream);
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InputStream in = result.getContent();
out = new ByteArrayOutputStream(1024);
byte[] buffer = new byte[1024];
for (int read = in.read(buffer); read > 0; read = in.read(buffer)) {
out.write(buffer, 0, read);
content = out.toString();
catch(LookupException e)
importanttrace.addWarning("Error while lookup " + e.getMessage() );
catch(IOException e)
importanttrace.addWarning("Error " + e.getMessage() );
finally
if (out!=null) {
try {
out.close();
} catch (IOException e) {
importanttrace.addWarning("Error while closing stream " + e.getMessage() );
// 7. close the accessor in order to free resources.
if (accessor!=null) {
try {
accessor.close();
} catch (LookupException e) {
importanttrace.addWarning("Error while closing accessor " + e.getMessage() );
//returning the result u2013 RFC-XML.response
if ((content.substring(143,150)).equals("NOENTRY"))
ExceptionThrower.generate("INVALID INPUT DEVWR NUMBER OR ID" );
return "Nothing";
else
return (content.substring(143,155));
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The other 2 parameters i can pass. that is IM_V_FILENAME and IM_V_WRNO.
i am able to extract the message ID using
java.util.Map param = container.getTransformationParameters();
String MSGID = (String) param.get (StreamTransformationConstants.MESSAGE_ID);
and displayed it in SXI_MONITOR trace also using importanttrace.addWarning("Input value is "+m);
i got the correct MSGID in the trace.But the problem is that this value is not getting passed to the FM. Cos the table is supposed to increment the counter whenever the MSGID value changes.
I tried hardcoding the MSGID value to 'abc' or '123' like values but the same thing happended. The counter will not increment. The FM is working perfectly when i run it and change the MSGID values manually.
Thanks
Pratichi

Hi,
We have done this by creating an FM in XI ABAP stack:
FUNCTION Z_ZBXI_GET_PRE_MSG_ID.
""Local Interface:
*" IMPORTING
*"     VALUE(I_CURRMSGID) TYPE CHAR40
*" EXPORTING
*"     VALUE(E_PREMSGID) TYPE CHAR40
DATA: lv_currmsgid type SXMSPMAST-MSGGUID,
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lv_currmsgid = i_currmsgid.
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Regards,
Shweta

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Hello,
Which are the table where I can find the RFC Destination with the Logical system names from SRM to R3 and R3 to SRM.

Hi,
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I need to find out the v_dest from a table in R3 which will give me the destination which is mentained in transaction SM59.
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RFC Sender (XI 3.0, SP14) Load Balancing doesn't work

Hi all,
We're "desperately" trying to use the Load Balancing option of RFC Sender Adapter (XI 3.0, SP14). It doesn't work.
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We did follow the XI guidelines step-by-step. All necessary configurations in XI and in SAP sender system (TA: SM59) are "properly" done and reviewed by different experts several times.
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Thanks a lot!
Regards,
Khaled

Hello Khaled,
the RFC sender adapter registers a program at the SAP Gateway. Load Balancing for the Sender Adapter means, that you have at least two J2EE server nodes within your XI installation. On all these server nodes the same RFC sender adapter is started and register the same program at the same gateway. The load balancing is then handled by the gateway. That means, that for the sender adapter the settings are the same, even if you use load balancing or not.
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- hostname=xyzhost (additional dialog instance of ABC)
- instance nr=00
application server (gateway): xi1host
application server service (gw-service): sapgw00
programm id: could be freely choosen
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The settings here must be:
Message-Server: abchost
Message-Server-Service: sapmsABC
System-ID: ABC
Logon-Group: e.g. PUBLIC; this logon group need to be created in system ABC using transaction SMLG
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Rgds.,
Andreas

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Dear All,
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Kindly guide me out.
Reg,
NJ

Hi nishu,
in operation you need type a name againasi the parameter XYZ.
XYZ----
ABC
and in configuration when you will use this operation mapping in interface determination then it will ask for the value of ABC.
so
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ABC=CC_TEST
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Simple Math

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hi all,
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now i have to call this RFC in my report,
so plz tell me the procedure for doing this.

First we need to check whether an RFC destination exist from the CRM system to R3 system. If so and you have the proper authorizations to use that RFC Destination you can make use of that RFC destination. If you dont find the suitable RFC destination, you or the authorized people shuold create the RFC destination in transaction SM59. Then use that destination in call function statement like
call function 'abc' destination 'xyz'.
Thanks,
Rajinikanth G

How to display RFC-Logon-Screen for non trusted connection in Web-Dynpro?

Dear Web-Dynpro-Specialists,
i got a issue while creation of an WebDynpro-Tool, which is using RFC connections for reading data.
In some cases the RFC connection is not a trusted one connection, so a login is nessessary, but in
this cases not a window is coming up for login....
Any idea how i can get this window for login, in order to collect the nessessary Data for my tool?
Additional Information concerning the RFC connection:
While running my Web-Dynpro i run this Method:
METHOD get_table_entries.
CLEAR rt_entries[].
CALL FUNCTION 'RFC_GET_TABLE_ENTRIES'
DESTINATION iv_destination
EXPORTING
gen_key = iv_table_key
table_name = iv_table_name
TABLES
entries = rt_entries
EXCEPTIONS
internal_error = 1
table_empty = 2
table_not_found = 3
OTHERS = 4.
CASE sy-subrc.
WHEN 1.
RAISE internal_error.
WHEN 2.
RAISE table_empty.
WHEN 3.
RAISE table_not_found.
WHEN 4.
RAISE unknown_error.
ENDCASE.
ENDMETHOD.
Thanks a lot in advance
Best regards
Carsten Klatt

Hi!
You can use the function module RFC_MODIFY_R3_DESTINATION to create, modify and delete RFC connections. You will need the system ID (e.g. ABC), client (e.g. 123), system number (e.g. 00) and the host name of the server. In this example the following code would create or modify the RFC destination ZRFC_DESTINATION.
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        destination                = 'ZRFC_DESTINATION'
        action                     = 'M'
        systemid                   = 'ABC'
        systemnr                   = '00'
        server                     = 'serverhostname'
        language                   = sy-langu
        client                     = '123'
        user                       = 'USERNAME'
        password                   = 'PASSWORD'
        description                = 'Dummy RFC Connection'
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        destination_already_exist = 2
        destination_not_exist      = 3
        destination_enqueue_reject = 4
        information_failure        = 5
        trfc_entry_invalid         = 6
        internal_failure           = 7
        snc_information_failure    = 8
        snc_internal_failure       = 9
        destination_is_locked      = 10
        OTHERS                     = 11.
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        destination                = 'ZRFC_DESTINATION'
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        snc_internal_failure       = 9
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If you want to reuse your connection for multiple servers, you could run into trouble since connection data is cached.
Sincerely,
Stefan

Cannot resovle the Symbol error in UDF - Java mapping - RFC Lookup ?

Hi Friends ,
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We are using SP 12 of XI 3.0 . What could be the reason ?
Thanks.,
V.Rangarajan

Hi,
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Thanks.
Regards,
Shweta

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