Integrating WebDynpro ABAP applications with UWL for workflow in Portal

Question

Dear
We want to integrate an abap webdynpro application as task in the workflow with UWL.
More information was found in /people/ginger.gatling/blog/2005/12/14/create-new-uis-for-existing-workflow-tasks-with-abap-web-dynpro-and-universal-worklist
But no answer on the following issue:
We use the transaction SWFVISU to prepare standard setting for our  task. This defines how a task is executed, once you select the task subject line on the worklist.
Task                           TS91700001
Visualization Type             ABAP Web Dynpro
APPLICATION     z_wd_pas
DYNPARAM     IV_WIID=${item.externalId}&period=${item.PERIOD}
NAMESPACE     SAP
SYSTEM_ALIAS     SAP_BSP_EREC
But we want to start the abap webdynpro application with a dynamic parameter: period 07.2010 or 08.2010 or MM.YYYY. This parameter is a container element of the task, filled when the task is created. Also other parameters are available in the abap webdynpro application.
Component       Z_WD_PAS
Interface View  PAS
Plug Name       DEFAULT
Help Menu Text
Help Link
                                                                                Package         Z_PAS
Language        EN
URL             http://saperpd1.imec.be:8000/sap/bc/webdynpro/sap/z_wd_pas                                                                               
with parameters
IV_WIID     000000000000     SWW_WIID
ORG_UNIT     00000000     ORGEH
PERIOD                              SPMON
PERNR     00000000     PERSNO                            
Can we set the dynamic parameter list DYNPARAM from the task
or should  we read the container in our abap webdynpro application described in http://wiki.sdn.sap.com/wiki/display/WDABAP/IntegratingWebDynproABAPapplicationswithUWLforworkflowin+Portal?
More information: The task is a webservice
Standard task        91700001   Z_PAS_CC
Object Category      BOR Object Type
Object Type          WEBSERVICE   WebFlow Service
Method               PROCESSDIALOG                      Dialog Service
with the following standard program code for this method:
begin_method processdialog changing container.
DATA: l_wi_objkey TYPE swotobjid-objkey.
DATA: l_wiid TYPE swwwihead-wi_id.
                                                                                CALL FUNCTION 'SWE_WI_GET_FROM_REQUESTER'
  IMPORTING
    requester_workitemid = l_wi_objkey.
l_wiid = l_wi_objkey.
                                                                                CALL FUNCTION 'SWF_WSC_START_LH_DIALOG'
  EXPORTING
    i_wiid                 = l_wiid
  EXCEPTIONS
    url_creation_failed    = 1
    browser_launch_failure = 2
    OTHERS                 = 3.
IF sy-subrc <> 0.
  CASE sy-subrc.
    WHEN 1.
      exit_return '1000' space space space space.
    WHEN 2.
      exit_return '1001' space space space space.
    WHEN OTHERS.
      exit_return '1002' space space space space.
  ENDCASE.
ENDIF.
end_method.                                           
Before calling the function SWF_WSC_START_LH_DIALOG the parameters for the abap webdynpro should be defined. Is this possible ?
Thanks for your suggestions.
Best regards
Luc Marent

Answer 1

I added below sources .
>    <ItemType name="uwl.request.webflow.WS91000001" connector="WebFlowConnector" defaultView="WorkItemRequestsView" defaultAction="launchWebDynPro" executionMode="default">
>      <ItemTypeCriteria systemId="UWLSETXXX" externalType="WS91000001" connector="WebFlowConnector" />
>      <Actions>
>        <Action name="launchWebDynPro" groupAction="" handler="SAPWebDynproABAPLauncher" returnToDetailViewAllowed="yes" launchInNewWindow="yes" launchNewWindowFeatures="resizable=yes,scrollbars=yes,status=yes,toolbar=no,menubar=no,location=no,directories=no">
>          <Properties>
>            <Property name="WebDynproApplication" value="ZWD_WF_002" />
>            <Property name="newWindowFeatures" value="resizable=yes,scrollbars=yes,status=yes,toolbar=no,menubar=no,location=no,directories=no" />
>            <Property name="DynamicParameter" value="wi_id=${item.externalId}" />
>            <Property name="openInNewWindow" value="yes" />
>            <Property name="System" value="WDSETXXX" />
>            <Property name="WebDynproNamespace" value="sap" />
>            <Property name="display_order_priority" value="5" />
>          </Properties>
>          <Descriptions default="" />
>        </Action>
>      </Actions>
>    </ItemType>
>    <ItemType name="uwl.request.webflow.decision.WS91000001.UWLSETXXX" connector="WebFlowConnector" defaultView="WorkItemRequestsView " defaultAction="viewDetail" executionMode="default">
>      <ItemTypeCriteria systemId="UWLSETXXX" externalType="WS91000001" connector="WebFlowConnector" />
>    </ItemType>