CardData não tem campo e / ou valor - iniciar o processo do fluig do protheus

Boa tarde pessoal

Eu tenho o seguinte código ADVPL:

#include "Totvs.ch"
User Function AFEWS04()

    Local cTexto    := ""
    Local nX        := 0
    Local oWSDL


    oWSDL := WSECMWorkflowEngineServiceService():New()

    oWSDL:cusername         := "dvasquez"
    oWSDL:cpassword         := "PASSWORD" 
    oWSDL:ncompanyId         := 99
    oWSDL:cprocessId         := "solicitud_vacaciones" //solicitud de vacaciones
    oWSDL:nchoosedState        := 4 //inicio

    oWSDL:ccomments         := "Solictud de vacaciones via ERP"
    oWSDL:cuserId             := "dvasquez" 
    oWSDL:lcompleteTask        := .T.

    /*cardData*/

    aAdd(oWSDL:oWSstartProcesscardData:oWSitem , {"desde","01/10/2020"} ) //nome campo, valor

    aAdd(oWSDL:oWSstartProcesscardData:oWSitem , {"hasta","31/12/2020"}  ) //nome campo , valor

    oWSDL:lmanagerMode := .T. //como gestor del proceso es .T.

    varinfo( "", oWSDL )

//startProcess(String user, String password, int companyId, String processId, int choosedState, 
//String[] colleagueIds, String comments, String userId, boolean completeTask, 
//ProcessAttachmentDto[] attachments, String[][] cardData, ProcessTaskAppointmentDto[] appointment, 
//boolean managerMode)
    oWSDL:startProcess(    oWSDL:cusername,;
                        oWSDL:cpassword,;
                        oWSDL:ncompanyId,;
                        oWSDL:cprocessId,;
                        oWSDL:nchoosedState,;
                        oWSDL:oWSstartProcesscolleagueIds,;
                        oWSDL:ccomments,;
                        oWSDL:cuserId,;
                        oWSDL:lcompleteTask,;
                        oWSDL:oWSstartProcessattachments,;
                        oWSDL:oWSstartProcesscardData,;
                        oWSDL:oWSstartProcessappointment,;
                        oWSDL:lmanagerMode;
                         )                    


    ConOut(WSDLDbgLevel(1))
    Conout(GETWSCERROR(1))

    ConOut(WSDLDbgLevel(2))
    Conout(GETWSCERROR(2))

    ConOut(WSDLDbgLevel(3))
    Conout(GETWSCERROR(3))        

    MsgInfo("OK")

    If Len( OWSDL:oWSstartProcessresult:OWSITEM ) = 1//Erro
    MsgInfo("ERROR")
        MsgInfo( OWSDL:oWSstartProcessresult:OWSITEM[1]:cItem[1] + " - " + OWSDL:oWSstartProcessresult:OWSITEM[1]:cItem[2] )

    Else

        For nX := 1 To Len( OWSDL:oWSstartProcessresult:OWSITEM )

            cTexto += " - " + OWSDL:oWSstartProcessresult:OWSITEM[nX]:cItem[1] + ": " + OWSDL:oWSstartProcessresult:OWSITEM[nX]:cItem[2] + CRLF

        Next nX

        MsgInfo( cTexto )


    EndIf

Return

Estou tentando consumir um serviço do webdesk / ECMWorkflowEngineService? Wsdl

Ao executar a fonte, ele tenta iniciar o processo, mas retorna o seguinte:

2020-10-01 12:40:34,240 INFO [com.totvs.technology.ecm.workflow.ws.WorkflowEngineService] (default task-401) Inicio de startProcess() iniciado... 2020-10-01 12:40:34,242 INFO [org.apache.cxf.phase.PhaseInterceptorChain] (default task-401) Application {http://ws.workflow.ecm.technology.totvs.com/}ECMWorkflowEngineServiceService#{http://ws.workflow.ecm.technology.totvs.com/}startProcess has thrown exception, unwinding now: java.lang.Exception: Campo cardData no tiene el campo y/o valor

indica que o campo cardData não possui o campo e / ou valor, Estou usando oWSDL: oWSstartProcesscardData para preencher as informações de cardData, mas não consigo preencher os campos do formulário. Alguém tem um exemplo de como iniciar um processo do fluig no protheus en Advpl?

Agradeço a ajuda.