Portal "Maintain JCO Destionations" Error

Dear Gurus,
Java System : NW7.31 EHP1
Backend : ERP6 EHP6
When i try to "maintain" or "create" JCO destionations in Content Administrator i am taking error like this ,
My SLD Test Connection is successfull and SLD is running,
I have configured JCO (SAP_R3_SelfServiceGenerics_MetaData) destination for ESS MSS packages, but when i travel in these packages in portal i am taking error,
500   Internal Server Error
SAP NetWeaver Application Server/Java AS
The initial exception that caused the request to fail, was:  
com.sap.tc.webdynpro.services.exceptions.WDRuntimeException: Failed to resolve JCO destination name 'SAP_R3_SelfServiceGenerics_MetaData' in the SLD. No such JCO destination is defined in the SLD.     at com.sap.tc.webdynpro.serverimpl.wdc.sl.JCOClientConnection.resolveConnectionParameter(JCOClientConnection.java:420)
    at com.sap.tc.webdynpro.serverimpl.core.sl.AbstractJCOClientConnection.init(AbstractJCOClientConnection.java:237)
    at com.sap.tc.webdynpro.serverimpl.core.sl.AbstractJCOClientConnection.<init>(AbstractJCOClientConnection.java:222)
    at com.sap.tc.webdynpro.serverimpl.wdc.sl.JCOClientConnection.<init>(JCOClientConnection.java:84)
    at com.sap.tc.webdynpro.serverimpl.wdc.sl.SystemLandscapeFactory.getJCOClientConnectionUnMapped(SystemLandscapeFactory.java:151)
Kindly need your helps
Regards

Hello,
Thee is 2 possible scenarios here.
Either your SLD is actually down or not starting correctly or there is a misconfiguration on the application side.
Therefore lets check these points:
[1] SLD side: Can you please check the target SLD's are up by calling the URL for each of them in a browser:
http://<hostname>:<port>/sld
Can you logon? Does appears as running when you logon?
If there is no working connection to the SLD it is not possible to
maintain any JCo destination at all.
If there are problems connection the SLD you can change the used
connection parameters using the Visual Admin.
[1.1] Please choose the SLD Data Supplier service and select the CIM
Client Generation Settings tab.
[1.2] You can now define the connection parameters. After that you have
to save your settings.
[1.3] You can test also the connection now using the #CIMClient Test#
button.
[1.4] After saving and restarting the Web Dynpro Content Administrator
uses the changed connection parameters
automatically. There is no need to restart the whole SAP J2EE Engine for
that.
[2] WD application side:
Could you please check if the JCO destination is really avaialable on
the Web Dynpro Content Admin?
you can start it directly using a URL like
http://<YourHost>:<YourPort>/webdynpro/dispatcher/tc~wd~toos/ContentAdministrator
Be aware that you need a user with administrator permissions. If not,
you are not allowed to start the Web Dynpro Content Administrator.
Regards,
David

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