Interaction between SAP Transaction Iview to webdynpro application

Hi All,
I have a requirement where in,
I have one SAP Transaction Iview and one Webdynpro (Java) Iview,
Now what I have to do is,
I need to call Webdynpro app ( or iview) as a pop up from Transation Iview (e.g. click on some button on SAP screen),
webdynpro screen will be opened,
do some processing there (calling some web service, getting some data from an external system) and then posting response data back to some screen field in Transaction Iview.
It is like on a standard SAP transaction, I want to open my custom webdynpro screen to do some data operation and fill response data back to SAP screen once that is done.
any ideas would be heavily appreciated and rewarded!!!!!
Regards
Deepak

I wrote the code like below:
WDPortalNavigation.navigateAbsolute("ROLES://<IViewPath>", WDPortalNavigationMode.SHOW_EXTERNAL,
(String)null,
(String)null,
WDPortalNavigationHistoryMode.ALLOW_DUPLICATIONS,
(String)null,
(String)null,
"number=123456");
In IView application property, I wrote:
CRMT_SEARCH_LOC-CARD_NO=<Request.number>
(L.H.S is the screen field name)
then I got following exception at portal:
An exception occurred while processing a request for :
iView : pcd:portal_content/<Iview path>
Component Name : com.sap.portal.appintegrator.sap.Transaction
Exception in SAP Application Integrator occured: Unable to process template 'CRMT_SEARCH_LOC-CARD_NO=<Request.number>', because 'number' is an invalid terminal property of context 'Request.'..
what went wrong????

Similar Messages

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    I wrote the code like below:
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