Exit / Suspend Plug not working in SAP Portal.

Hi Experts,

We have a requirement in NWDS 7.01 to open a web URL in same window onclick of a button UI element in the application. The URL will be created on run time.

Without portal login (guest application / standalone component) the web dynpro application is working fine. (Use of suspend plug)

But with log in the application is giving run time exception

com.sap.tc.webdynpro.services.exceptions.WDRuntimeException: Exit-Plug must no be triggered with an URL when running in portal. Use portal navigation instead to navigate to another application!

Please help

Thanks