JCO Connection Creation

Hi,
When I am trying to create JCO Connection in Webdynpro Content Admin ,
In step 2 it is asking for Connection
Message Server Connection / Application Server Connection
>>If I choose Message Server Connection , I am getting a runtime exception .
>>If I choose Application Server Connection , The Application Server DropDownList is blank.
>>Also there is a Use Router CheckBox , if I check this what should I give in the SAP Router InputField.
Can anyone help.
Thanks in Advance

Hi Chemmam,
I guess you have not created technical system in SLD.
You need to first create your technical system in sld.
Goto link http://<host>:<port>/sld
there choose Technical landscape link and then click on "New Technical System". I gives one wizard. Give information about your ABAP system there.
Now, you can see this system in the drop down.
Regards,
Bhavik

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Error in JCo Connection creation

Hi All,
When I create a JCo connection on my local J2EE it fails with the error enclosed as below:
com.sap.mw.jco.JCO$Exception: (102) RFC_ERROR_COMMUNICATION: Connect to message server host failed Connect_PM TYPE=B MSHOST=frces4066 GROUP=PUBLIC R3NAME=AM1 MSSERV=sapmsAM1 PCS=1 ERROR partner not reached (host frces4066, service sapmsAM1) TIME Mon Apr 03 18:44:33 2006 RELEASE 640 COMPONENT NI (network interface) VERSION 37 RC -10 MODULE nixxi_r.cpp LINE 8596 DETAIL NiPConnect2 SYSTEM CALL SiPeekPendConn ERRNO 10061 ERRNO TEXT WSAECONNREFUSED: Connection refused COUNTER 1
When I try and ping the JCo the error is as enclosed below:
Failed to ping JCo destination WD_COMMITMENT_MODELDATA_DEST
I have maintained the enteries in hosts file as well as the services file and when I telnet the server on port 36XX where XX is the system number of the system I create the JCo for it connects successfully.
When I test the CIM test for the SLD that connects successfully.
Where and why is the JCo failing after creation?
Can someone throw some light on this error.
Thanks in advance for all your help.
Best regards,
Divya

Hi All,
Anyone can help? I got the same problem. It seems that the PUBLIC group in NSP ABAP system can't not be accessed.
Here is my system landscape:
- I have installed the Java and ABAP in the same host
- My ABAP system is NW2004sSneakPreviewABAP, Java is SAPNetWeaver04_SP16Preview
1) I set up SLD successfully (import CIM, run RZ70, the ABAP system shown up in the Technical Landscape in SLD
2) I created JCO destination with Load Balancing but it failed to ping and to test
3) I already define the group 'PUBLIC' in tx SMLG but from SAPGUI I can't add the group. I got the error message "Message Sever could not find any group".
4) The PUBLIC group does not show if I run the program 'lgtst'.
Test lgtst:
===========
c:\usr\sap\NSP\SYS\exe\nuc\NTI386>lgtst.exe -H hpxp2 -S sapmsNSPusing trcfile: dev_lg
list of reachable application servers
[hpxp2_NSP_00] [hpxp2] [10.10.0.10] [sapdp00] [3200] [DIA UPD ENQ BTC SPO ICM ]
c:\usr\sap\NSP\SYS\exe\nuc\NTI386>lgtst.exe -H hpxp2 -S 3600
using trcfile: dev_lg
list of reachable application servers
[hpxp2_NSP_00] [hpxp2] [10.10.0.10] [sapdp00] [3200] [DIA UPD ENQ BTC SPO ICM ]
James

Need help in JCO connection creation/maintanence.

Hi,
In our project we have EP system ( Java Stack).We need to form the JCO connection that is required to deploy the web dynpro applications.We have taken a couple of JCO connection which are already there SAP_R3_HumanResources & SAP_R3_HumanResources_Metadata.For SAP_R3_HumanResources_Metadata JCO connection the user existing is a dialog user,also not having sufficient authorization to access all DDIC functions.My question is that what authorization required to user in this case to access all DDIC functions?Also for SAP_R3_HumanResources JCO connection what all prerequisites we require?.In this environment CD2 ( Dev.SAP system) is acting as backend to production portal PP6 system.Please let me know if you want any more details from my side.

Hi nileshshete
I quote this from sap-img.com:
There are many functions of DDIC user.
For E.g.. When you configure TMS you won't be able to configure it using sap*. For this you need a user who has access to Data dictionary and ABAP repository Object like DDIC user or user with sap_all and sap_new permission.
http://www.sap-img.com/basis/function-and-role-of-user-types.htm
I think u need a user with sap_all premission.
Hope it helps,
Nitsan

Jco connection creation for plan modeler on BI 7.0

If I open plan modeler RSPLAN on BI 7.0 I am getting u201CJco connection not availableu201D message so I tried to create the connection from webdynpro content administrator.from there I could see all the connections in red colour
BI_MODELDATA
BI_METADATA
WD_ALV_MODELDATA_DEST
WD_ALV_METADATA_DEST
So I have chosen u201Ccreate u201Coption of the above connections to establish Jc0 .please let me know what parameters to be given for each settings.
For example we take BI_METADATA ,
General data:
Name : BI_METADATA
Client u2013 xxx ( should we have to give BI client no here ,by default it shows 000)
J2ee cluster :
Default :hostname ( no doubt)
Connection type:
Dictionary melta data( chosen by default u2013 no doubt)
Application data:
Message server :SID hostname (no doubt)
System name
Logon group:
User authentication :\
Username : **** ( should I have to give the user name of BI client)
Password
Confirm password :
Please carify the above doubts and help me out to resolve the issue Plan modeler
Once I set the connection of each should I have to restart JAVA engine,
I would appreciate all your help and suggestion

Take the Basis help to troubleshoot it
919850 Problems with the planning modeler and the planning wizard
901022 Integrated planning: RSPLS321 (J2EE engine not found)
947376 Troubleshooting JCo and AdaptiveRFC in Web Dynpro for Java
One more thing is to check if the SLD is maintained properly or not:
Hope it Helps
Chetan
@CP..

JCO connection help

Dear all,
After go though the steps of the JCO connection creation wizard and specify the connection data.When i press finish ,i ge this statement "JCo destination 'WD_MODELDATA_DEST' was successfully updated in SLD. " but my status for this JCO connection still showing RED,any idea? thank you

problem solved..thx all

Error in creating JCo connection with destination type'Load-Balanced Con'

Hi,
I am working on webdynpro application(NW 04s), i need to connect with the backend system(ECC 6.0) using model.I configured my SLD and created technical system successfully.
The technical system got created with an error:
CIM_ERR_ALREADY_EXISTS: Instance already exists: SAP_BCApplicationServer.CreationClassName="SAP_BCApplicationServer",Name="ID1.Number.01.HostName.ahsides"
But the system got created so I proceeded with Jco connection creation:
I need to create 2 Jco connections for this,
First with Data Type 'Application Data' & Destination Type 'Single-Server connection'. Second with Data Type 'Data Dictionary' & Destination type 'Load-balanced Connection'.
The first Jco with 'Single-Server connection' got created successfully and ping and test is also successfull.
The second Jco connection with 'Load-Balanced Connection' got created successfull but it is throwing error while pinging and testing.
Ping Error : Failed to ping JCo destination 'WD_EMPLOYEE_RFC_METADATA_DEST'.
Test Error : com.sap.mw.jco.JCO$Exception: (102) JCO_ERROR_COMMUNICATION: JCO.Client not connected in repository call
Please help me in this.This problem was with 'Load-Balanced Connection' only.

Hi,
Have you taken a look at the file %windir%\system32\drivers\etc\services?
If you haven't, try and find the line sapms<sid>, where sid is de SID of the system you-re trying to reach.
If the line isn't there write it down like this.
sapms<sid> 36<nr>/tcp
That works for me.

Problems creating JCO Connections

Hi experts,
I have a question regarding the JCO Connection creation in Content Administrator.
My first doubt is if it's necessary to create each JCO Connection for each backend system that I'll run RFC functions?
If is it true, during Creation I must specify user and password. I have to specify the Backend User and Pass, right?
Finally, could you explain me why there are several JCO connections created?
When I create the JCO connection I will be able to invoque Backend RFC functions from, for example, a webdynpro?
Kind Regards,
Martin.

Hi Martin,
1. Yes, provided you want to use the RFC functionality.
2. Yes, you would be giving the username and password for the metadata.
Please refer to [Creating JCo Destinations|http://help.sap.com/saphelp_nw70/helpdata/EN/3a/3b1b40fcdd8f5ce10000000a155106/frameset.htm]
3.Generally, when you install business packages like ESS MSS etc, there are a bunch of JCO which are installed as well, but all you would have to do is edit its properties and point them to the correct location.
4. Yes, you can.
Regards,
Sandeep Tudumu

User Id creation for Jco connections

Hi,
Need to create a user for verifying the Jco connections. Please help me with the steps of creation and how can it restricted only for verifying the connections.
Thanks

Hi Daneil,
Best way is to do it yourself.
1 - Create a user having full access (SAP_ALL and SAP_NEW and RFC Full access as well).
2 - Set up the JCO connection with this user ID.
3 - Put a trace (ST01) on this user ID and then test the connection.
4 - Analyze the trace file and create a role having all the access pulled in the trace.
5 - remove all the access from the above user and assign the role created in 4.
6 - Put a trace once again on this user Id, just to ensure that if there is a miss in any authorization(failure) then you will be able to capture that as well. Update the role accordingly.
Hope this helps.

Creation of JCO connection

Hi all,
i'm having a problem when creating JCO connections for WebDynpro.
When I create an "Application data" connection with "Single Server Connection" the connection is created sucessfully and I have successfull test and ping.
If I create an "Application data" conncetion with "Load Balancing" then the connection returns an error
"com.sap.tc.webdynpro.services.sal.sl.api.WDSystemLandscapeException: Error while obtaining JCO connection"
The Metadata connections it's only possible to create with "load-balanced connection" and then all of them gaves this last error.
Then, when I try to run an portal application for MSS/ESS it gave
"Failed to resolve connection parameter for 'SAP_R3_SelfServiceGenerics_MetaData'"
Someone knows why is that ? Can I pass over it !?!?
I'm stuck because I don't know what more can I do !!! I think that I've read all documentation about that !!
Best Regards,
Thanks very much
Pedro

Hi Narayana,
See this link for sample applcation
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/bc9baf90-0201-0010-479a-b49b25598ebf
Check this link too
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/2ce854ed-0701-0010-deb5-ffd61d73fd9f
Jco Connections
Regards, Suresh KB

Problems during creation of JCo Connections

Hi everybody,
i've a problem while creating JCo Connections in the Content Administrator of me WebAS.
I can selct the connection i want to maintain, but at the second step, an new window appears and i get the following message. Does anybody have an idea and could help me.
Best regards,
Maik.
An error has occurred:
"Failed to process the request."
Please contact your system administrator.
Hide details
Web Dynpro client:
HTML Client
Web Dynpro client capabilities:
User agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0), version: null, DOM version: null, client type: msie6, client type profile: ie6, ActiveX: enabled, Cookies: enabled, Frames: enabled, Java applets: enabled, JavaScript: enabled, Tables: enabled, VB Script: enabled
Web Dynpro runtime:
Vendor: SAP, Build ID: 6.4010.00.0000.20040921144040.0000 (release=630_SP_REL, buildtime=2004-09-21:22:25:54[UTC], changelist=283399, host=PWDFM067)
Web Dynpro code generators of DC sap.com/tcwdtools:
No information available
Web Dynpro code generators of DC sap.com/tcwddispwda:
No information available
Web Dynpro code generators of DC sap.com/tcwdcorecomp:
No information available
J2EE Engine:
6.40 patchlevel 86216.32
Java VM:
Java HotSpot(TM) Server VM, version: 1.4.2_05-b04, vendor: Sun Microsystems Inc.
Operating system:
Windows 2000, version: 5.0, architecture: x86
Error stacktrace:
java.lang.NullPointerException

Hi Henrik,
I got exactly the same problem has you have with the same version (6.40 SP9). I have opened an OSS message ..
Best regards,
Christian DUCRET (SAP BAsis Team)

Logical System Creation & JCO Connection.................

Hi,
I have configured ESS in my portal 6.0 but I am confused with some concepts.
I have created System in portal System Landscape with alias "SAP_WebDynpro_XSS" . & also i have created JCO Connection SAP_R3_HumanResources (Appln data/Metadata).These are the steps in configuration guide.....
My backend system is ECC 5.0.
If i can access my backend for my webdynpro iview through JCO connectiones why i need to create system in portal ????
Thanks in advance!!!
Smita.

Hi,
All the Standard iviews use this System for calling the JavaWD Application.
This Java WD Application in turn uses the JCo to communicate with backend to get the application sensitive data to the application and display it.
Regards,
Raja Sekhar

Creation of JCO Connection vizards

any body help me on hw to create JCO connection
plz tell me details
[email protected]

Hi Narayana,
See this link for sample applcation
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/bc9baf90-0201-0010-479a-b49b25598ebf
Check this link too
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/2ce854ed-0701-0010-deb5-ffd61d73fd9f
Jco Connections
Regards, Suresh KB

Error creation of JCO connection: System Already Exist

Hi Experts,
We have created the SLD connection to the ECC6.0 from the Portal 7.0.
Created one JCO connection using that SLD successfully for the Clinet 100.
Now we required to create one more JCO Connection for client200 also. But it is giving the Error that
System Already Exist.
How can we resolve this. When we create the JCO connection for one client, con't we create one more JCO connection for the same system for the differt client or not?
If so How do it?
Regards

I think you can add one more client in the existing connection. well, I am not sure about that even.
nikhil

Jco connection error while calling Custom FM in CRM Internet Sales Application

Hi ,
I am trying to do some customisation in the CRM ISA 4.0 development component.
Have followed the steps given in the Development and Extension Guide and tutorial PDF
Steps done for Custom RFC Call
1.       Create RFCs
2.       Edit file backendobject-config.xml in folder project_root\b2b_z\WEB-INF\xcm\customer\modification:-
3.       BackendBusinessObject Jco -
4.       BusinessObject -
5.       Edit file bom-config.xml in folder project_root\b2b_z\WEB-INF\xcm\customer\modification
6.       BusinessObjectManager BoM
7.       BackendAware-
8.       config.xml - to add custom actions
9.       Action creation
10.     Page : Order_change.jsp.
The backend is the CRM system while making a call to the CRM system the connection to the CRM system is not working .
Similar to what is given in the tutorial the getDefaultJCoConnection() is used .
But gettting null at the JCO connection.
JCO.Function func = getDefaultJCoConnection().getJCoFunction(‘CRM_ISA_SHOP_GETLIST’);
This is how my custom FM is being called.
Can someone help me with what may be the possible reason for this call failure.
While debugging and checking it shows null pointer exception in the JCo connection .
Thanks
Chinju

Hi Hamendra,
When the code debugging was done in Java then we got just the NullPointerException for the JCo.
In the nwa log shows
where BackendBusinessObjectBaseSAP is the standard Java Class in the ISA
Error at
com.sap.isa.core.eai.sp.jco.BackendBusinessObjectBaseSAP.getDefaultJCoConnection(BackendBusinessObjectBaseSAP.java:46)
Thanks
Chinju

How to create a model and JCO connection

Hi all,
The Userid and Password given while creating new model at Singleserver/Load balancing tab should be same as the userid and password given while creating JCO connection. i.e in JCO creation while mapping modeldata to Application data and Metadata to metadata we will give some userid and password.
will those 2 userids and passwords should be same.
the error which i am getting is
com.sap.tc.webdynpro.modelimpl.dynamicrfc.WDDynamicRFCExecuteException: Error connecting using JCO.Client: null
Regards
Padma N

2 userids and passwords need not be same
i got similar problem and this is how i resolved
this is because jco connections are Using SSO and the user who is accessing that webdynpro application is not present in the backend system.
please make sure user is there in the backend system from which you are getting data
xxxxxxxxxxxxxxxxxxxxx
Edited by: Armin Reichert on Feb 18, 2008 7:26 PM

JCO Connection Creation

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