uwl configuration error

Hi All

I am configuring the UWL ivew in EP7.0 backend ECC6.0

I created the system, alias and got a success result for the register. SSO is also configured. However when I test the iView i get the following error

<b>Exception type:com.sap.netweaver.bc.uwl.connect.ConnectorException Message:Thu Dec 21 18:58:54 EST 2006

(Connector) :com.sap.portal.connectivity.ConnectivityRuntimeException:User is missing credentials for connecting to alias <i>XXXXX</i>. Contact your system administrator.</b>

What credentials I need to specify and where do I have to do it

Your help is greatly appreciated.

thanks

-sm