Set dynamic user to the Workflow

Hi,

I created and published a role 'EDC' in the AppWorks platform,
then i set the Assignee Type to 'Role' in a workflow activity, to read from message,
the message element is assigned a fixed value 'EDC' in the activity pre-assignments.

Now when i run the workflow, following error is raised, please advise:

The "HumanInteraction" request did not process successfully because of "the assignee ID 'EDC' does not exist.".
Actor: cn=Notification,cn=soap nodes,o=system,cn=cordys,cn=defaultInst,o=bass.com.eg
Detail: Cordys.Notification.Messages.exceptionEncounteredHumanInteractionthe assignee ID 'EDC' does not exist.com.cordys.notification.exceptions.NotificationRuntimeException: the assignee ID 'EDC' does not exist.

at com.cordys.bpm.runtime.communication.webservice.ESBClient.sendAndWait(ESBClient.java:184)
at com.cordys.bpm.utils.humantask.HumanTask.execute(HumanTask.java:293)
at com.cordys.bpm.runtime.activity.task.HumanTaskHandler.start(HumanTaskHandler.java:207)
at com.cordys.bpm.runtime.activity.Activity.performActivityExecution(Activity.java:664)
at com.cordys.bpm.runtime.activity.Activity.execute(Activity.java:439)
at com.cordys.bpm.runtime.activity.Activity.executeActivityWrapper(Activity.java:3053)
at com.cordys.bpm.runtime.activity.Activity.lambda$executeActivity$22(Activity.java:3085)
at com.cordys.transaction.TransactionProvider.callInExistingTransaction(TransactionProvider.java:152)
at com.cordys.transaction.TransactionProvider.createTransactionAndExecuteWork(TransactionProvider.java:133)
at com.cordys.transaction.TransactionProvider.lambda$callInNewTransaction$1(TransactionProvider.java:82)
at com.cordys.transaction.TransactionProvider.callWithoutTransaction(TransactionProvider.java:111)
at com.cordys.transaction.TransactionProvider.callInNewTransaction(TransactionProvider.java:82)
at com.cordys.bpm.utils.db.ProcessTransaction.callInNewTransaction(ProcessTransaction.java:31)
at com.cordys.bpm.runtime.activity.Activity.executeActivity(Activity.java:3088)
at com.cordys.bpm.scxml.core.ActivityExecutor.execute(ActivityExecutor.java:135)
at com.cordys.bpm.scxml.interpreter.ReleaseActivity.execute(ReleaseActivity.java:68)
at com.cordys.statemachine.model.Executable.execute(Executable.java:151)
at com.cordys.statemachine.model.Transition.gotoTarget(Transition.java:227)
at com.cordys.statemachine.model.Transition.execute(Transition.java:103)
at com.cordys.statemachine.runtime.StateMachineInstance.processEvent(StateMachineInstance.java:293)
at com.cordys.statemachine.runtime.StateMachineInstance.consumeEvent(StateMachineInstance.java:251)
at com.cordys.bpm.scxml.core.SCXMLProcessInstance.consumeEvent(SCXMLProcessInstance.java:349)
at com.cordys.bpm.scxml.core.SCXMLProcessInstance.consumeEvents(SCXMLProcessInstance.java:580)
at com.cordys.bpm.scxml.core.SCXMLProcessInstance.resumeInstance(SCXMLProcessInstance.java:490)
at com.cordys.bpm.scxml.core.SCXMLProcessInstance.execute(SCXMLProcessInstance.java:440)
at com.cordys.bpm.runtime.interpreter.bpml.ProcessActivity.executeProcess(ProcessActivity.java:582)
at com.cordys.bpm.runtime.interpreter.bpml.ProcessActivity.<init>(ProcessActivity.java:413)
at com.cordys.bpm.runtime.interpreter.bpml.Package.<init>(Package.java:148)
at com.cordys.bpm.runtime.engine.ProcessInstance.execute(ProcessInstance.java:1061)
at com.cordys.bpm.runtime.engine.ProcessInstance.lambda$run$1(ProcessInstance.java:756)
at com.cordys.applicationserver.EJBContextProvider.invokeWithPlatformContext(EJBContextProvider.java:105)
at com.cordys.applicationserver.EJBContextProvider.lambda$invokeWithPlatformInformation$5(EJBContextProvider.java:97)
at com.cordys.applicationserver.EJBContextProviderInternal.invokeWithClassLoader(EJBContextProviderInternal.java:66)
at com.cordys.applicationserver.EJBContextProviderInternal.lambda$invokeWithEJBContext$1(EJBContextProviderInternal.java:56)
at com.cordys.applicationserver.PlatformContextBean.invoke(PlatformContextBean.java:20)
at sun.reflect.GeneratedMethodAccessor132.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at org.apache.openejb.core.interceptor.ReflectionInvocationContext$Invocation.invoke(ReflectionInvocationContext.java:192)
at org.apache.openejb.core.interceptor.ReflectionInvocationContext.proceed(ReflectionInvocationContext.java:173)
at org.apache.openejb.monitoring.StatsInterceptor.record(StatsInterceptor.java:181)
at org.apache.openejb.monitoring.StatsInterceptor.invoke(StatsInterceptor.java:100)
at sun.reflect.GeneratedMethodAccessor128.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at org.apache.openejb.core.interceptor.ReflectionInvocationContext$Invocation.invoke(ReflectionInvocationContext.java:192)
at org.apache.openejb.core.interceptor.ReflectionInvocationContext.proceed(ReflectionInvocationContext.java:173)
at org.apache.openejb.core.interceptor.InterceptorStack.invoke(InterceptorStack.java:85)
at org.apache.openejb.core.stateless.StatelessContainer._invoke(StatelessContainer.java:227)
at org.apache.openejb.core.stateless.StatelessContainer.invoke(StatelessContainer.java:194)
at org.apache.openejb.core.ivm.EjbObjectProxyHandler.synchronizedBusinessMethod(EjbObjectProxyHandler.java:317)
at org.apache.openejb.core.ivm.EjbObjectProxyHandler.businessMethod(EjbObjectProxyHandler.java:312)
at org.apache.openejb.core.ivm.EjbObjectProxyHandler._invoke(EjbObjectProxyHandler.java:92)
at org.apache.openejb.core.ivm.BaseEjbProxyHandler.invoke(BaseEjbProxyHandler.java:325)
at com.cordys.applicationserver.PlatformContextBean$$LocalBeanProxy.invoke(com/cordys/applicationserver/PlatformContextBean.java)
at com.cordys.applicationserver.PlatformContextBean.invoke(PlatformContextBean.java:12)
at com.cordys.applicationserver.EJBContextProviderInternal.invokeWithEJBContext(EJBContextProviderInternal.java:56)
at com.cordys.applicationserver.EJBContextProvider.invokeWithPlatformInformation(EJBContextProvider.java:97)
at com.cordys.applicationserver.EJBContextProvider.invokeWithPlatformInformation(EJBContextProvider.java:78)
at com.cordys.bpm.runtime.engine.ProcessInstance.run(ProcessInstance.java:755)
at com.cordys.bpm.runtime.threadpool.WorkerThread.runIt(WorkerThread.java:142)
at com.cordys.bpm.runtime.threadpool.WorkerThread.startWork(WorkerThread.java:102)
at com.cordys.bpm.runtime.threadpool.WorkerThread.access$100(WorkerThread.java:9)
at com.cordys.bpm.runtime.threadpool.WorkerThread$1.run(WorkerThread.java:41)
at java.lang.Thread.run(Thread.java:745)