Pass parameter to VC from workflow

Question

Hi,
We created a Visual Composer application which we would like to call from a workflow. If we don't pass a parameter to the VC, it works, when we pass one, it doesnu2019t work.
Our Visual Composer application expects an input value called WI_ID.
We would like to call this Visual Composer aplication via an iView launched from a workflow item.
Our task is TS90000138 and its visualization contains DYNPARAM: wi_id=${item.externalId}.
If we execute this task, &iviewDynamicParameter=wi_id%3d000005985089&wi_id=000005985089 is added to the URL, but the value is not passed on to the VC application, because as explained in http://www.sdn.sap.com/irj/scn/index?rid=/library/uuid/2090414b-cd20-2a10-d594-8de9d146044a, Visual Composer expects &_paramsXmlStr_=<Params><Row%20WI_ID="5984427"/></Params>.
We tried two options:
Option 1:
change the task visualization to paramsXmlStr=<Params><Row%20WI_ID="${item.externalId}"/></Params>, but this results in the following line in the UWL XML (after re-registering the UWL WebFlowConnector and deleting the cache):
<Property name="iviewDynamicParameter" value="_paramsXmlStr_=&lt;Params>&lt;Row%20WI_ID=&quot;${item.externalId}&quot;/>&lt;/Params>"/>
which is not a valid XML format due to the < and > signs.
Option 2:
encode the string as explained on http://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/2090414b-cd20-2a10-d594-8de9d146044a?QuickLink=index&overridelayout=true and enter paramsXmlStr=%3CParams%3E%3CRow%20WI_ID%3D%22${item.externalId}%22%20/%3E%3C/Params%3E into the task visualization.
When we execute this "the encoding gets encoded" and we get the following URL, which doesn't work either:
&_paramsXmlStr_%3D%253CParams%253E%253CRow%2520WI_ID%253D%2522000005985097%2522%2520%2F%253E%253C%2FParams%253E&iviewDynamicParameter=_paramsXmlStr_%3D%253CParams%253E%253CRow%2520WI_ID%253D%2522000005985097%2522%2520%2F%253E%253C%2FParams%253E
As explained on http://help.sap.com/saphelp_nw70/Helpdata/en/45/a7863f445f4617e10000000a114084/content.htm, there are only 3 pamaters (ID, CONFIRM, DYNPARAM) and no other one can be used.
Do you know how to fix this issue?
Thanks,
Tamas

Answer 1

Hello Tamas,
I did succeed to call a Visual Composer model from the UWL (using workflow tasks coming from our ERP 6 backend).
I did customised UWL workflow task (within the portal) :
<Property
name="iviewDynamicParameter"
value="WI_ID=${item.externalId}"/>
  <Property
name="iview"
value="pcd:portal_content/pcc_portal_application/.../xxx.uwl_task_VC"/>
Parameter WI_ID (WorkItem Id) is automatically sent by the portal system.
I set, in VC, a start point with a string data parameter called WI_ID.
When calling the model this parameter WI_ID is filled.
Hope it could help.
Rgds
Gilles