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Web Service Client in WebDynPro and SAP Logon Ticket


I have a web service enabled EJB application running on WAS 6.40 SP9 and a WebDynPro client application using this web service (imported as a web service model). Both are running on the same app server.

The problem is that I want to secure the web service and need user credentials to access some backend functions, therefore I think the best way is to authenticate against the web service using SAP Logon ticket created when the user authenticates on the webdynpro logon screen.

By no means I have been able to make it work, so far all I can do is set the web service for HTTP basic authentication and pass a fixed user id and password from webdynpro. This is not what I need.

Documentation is very limited about using SAP Logon ticket with web services and did not find any example to realize this from WebDynPro.

SSO Ticket generation works perfectly between SAP Portal and WebDynPro. Just can't pass it over to web service.

I tried almost any combination of authentication settings both on the web service side and in the imported model in webdynpro client application.

Can anybody give some guidelines on how to achieve this and / or where to look for how to's?

Thanks in advance!



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