How to Integrate ESS/MSS to Webdynpro Application?

Hi All,
I am New to Webdynpros.
I Want to Develop Application on Webdynpro and integrate to ESS/MSS.
How to Start and what to do?
Plz Reply ASAP.
Thanks and Regards
Kiran

Most of the application in ESS have used the FPM (http://help.sap.com/saphelp_erp2005/helpdata/en/3f/20888224c544a2a01d9fe618902ae5/frameset.htm) to develop new self service applications.
You may start developing applications as described in the help link and then integrate it with ESS. You will have to maintain some setting under Homepage Framework in SPRO. There are plenty of threads describing this. Do  search
Thanks,
GLM

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    com.sap.tc.webdynpro.repository.RepositoryRuntimeException: Failed to deploy the file 'C:\usr\sap\NBW\DVEBMGS21\j2ee\cluster\server0\.\temp\webdynpro\public\sap.com\essauaddr\webdynpro\Applications\com.sap.xss.hr.per.au.address.Per_Address_AU\Per_Address_AU.xml' into the database. Reason: Development Object 'sap.com/ess~au' contains already same repository content. Hint: fully qualified name of the repository VMO must be globally unique.
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         at com.sap.engine.core.thread.impl3.SingleThread.execute(SingleThread.java:100)
         at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:170)
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    Location : com.sap.engine.services.webdynpro.WebDynproContainer
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    Datasource : 1173687328333:C:\usr\sap\NBW\DVEBMGS21\j2ee\cluster\server0\log\defaultTrace.trc
    Message ID : 001321C841EF0056000000030000110800042B7618DD7104
    Source Name : com.sap.engine.services.webdynpro.WebDynproContainer
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         at com.sap.engine.services.deploy.server.application.ApplicationTransaction.makeAllPhases(ApplicationTransaction.java:326)
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         at java.security.AccessController.doPrivileged(Native Method)
         at com.sap.engine.core.thread.impl3.SingleThread.execute(SingleThread.java:100)
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    Arguments : sap.com/essauaddr,com.sap.tc.webdynpro.serverimpl.wdc.repository.RepositoryContainerHook,com.sap.tc.webdynpro.repository.RepositoryRuntimeException: Failed to deploy the file 'C:\usr\sap\NBW\DVEBMGS21\j2ee\cluster\server0\.\temp\webdynpro\public\sap.com\essauaddr\webdynpro\Applications\com.sap.xss.hr.per.au.address.Per_Address_AU\Per_Address_AU.xml' into the database. Reason: Development Object 'sap.com/ess~au' contains already same repository content. Hint: fully qualified name of the repository VMO must be globally unique.
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         at com.sap.tc.webdynpro.repository.deploy.RepositoryUpdateManager.deployRepositoryContent(RepositoryUpdateManager.java:98)
         at com.sap.tc.webdynpro.serverimpl.wdc.repository.RepositoryContainerHook.onDeploy(RepositoryContainerHook.java:232)
         at com.sap.engine.services.webdynpro.WebDynproContainer.deploy(WebDynproContainer.java:1007)
         at com.sap.engine.services.deploy.server.application.DeploymentTransaction.makeComponents(DeploymentTransaction.java:606)
         at com.sap.engine.services.deploy.server.application.DeployUtilTransaction.commonBegin(DeployUtilTransaction.java:321)
         at com.sap.engine.services.deploy.server.application.DeploymentTransaction.begin(DeploymentTransaction.java:307)
         at com.sap.engine.services.deploy.server.application.ApplicationTransaction.makeAllPhasesOnOneServer(ApplicationTransaction.java:292)
         at com.sap.engine.services.deploy.server.application.ApplicationTransaction.makeAllPhases(ApplicationTransaction.java:326)
         at com.sap.engine.services.deploy.server.DeployServiceImpl.makeGlobalTransaction(DeployServiceImpl.java:3184)
         at com.sap.engine.services.deploy.server.DeployServiceImpl.deploy(DeployServiceImpl.java:552)
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         at com.sap.engine.services.rmi_p4.DispatchImpl._runInternal(DispatchImpl.java:320)
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         at java.security.AccessController.doPrivileged(Native Method)
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         at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:170)
    Dsr Component :
    Dsr Transaction : 0b312900d06f11db9da1001321c841ef
    Dsr User :
    Indent : 0
    Level : 0
    Message Code :
    Message Type : 1
    Relatives : /System/UserInterface
    Resource Bundlename :
    Session : 4
    Source : com.sap.engine.services.webdynpro.WebDynproContainer
    ThreadObject : SAPEngine_Application_Thread[impl:3]_8
    Transaction :
    User : J2EE_ADMIN
    Any thoughts and ideas would be greatly appreciated.

    Hi Friends,
    I got the same problem but not on ESS/MSS component. But the exception was exactly the same. The solution what i found is
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    Thanks,
    Raags

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