Could not create JCOClientConnection for logical System: SAP_R3_HumanResour

Hi,
For all the standard ESS (sap.com) the JCo connection used is SAP_R3_HumanResources .
All the applications are working fine.
I am trying to add a test Component in one of the (sap.com~eepro) for testing a standard BAPI call for getting user details.
I have used the same Model and the same SAP_R3_HumanResources destination name.
But i get the following error when i try to execute the standard BAPI_USER_GETDetails (non - HR).The other applications for standard components (Vc ) work when i run the application.
My question here is why a custom , local webdynpro when try to make a RFC call using the running already existing JCO connection throws such error.
How could this be solved.Note the connection is running and working fine for all the ESS webdynpros!!
Error:
Could not create JCOClientConnection for logical System: SAP_R3_HumanResources - Model: class com.test.hr.model.Test. Please assure that you have configured the RFC connections and/or logical system name properly for this model!
Your experience would be worthy enough.
Regards,
Swathi

Hi Swathi,
Here are some suggestions to trace down to the actual problem.
1) First check if all users are having this issue. (All other applications working and only one application giving problem)
2) If no, then take list of users having this problem and check their portal and SAP accounts
3) If yes, then concentrate on testing the JCo connections and the user account mapped in JCo settings
Possible things u can check is user's portal account (locked or not), SAP account (lock or validity), pernr mapped (validity), JCo user (check for lock), ping and test JCo connections
If none of them are issue, check the logs if there are any trace for this issue. I believe there must be certainly one. That can help u going further.
Regards,
Harini S

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MyFirstModelTypemodelMyFirst= (MyFirstModelType) WDModelFactory.getModelInstance(
MyFirstModelType.class,
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MyOtherModelType.class,
WDModelScopeType.APPLICATION_SCOPE);
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