Estou tentando consumir um metodo do meu web service mas estou tendo problemas já validei os dados e não achei o erro via soupui funciona e alimentar direto via dataset tbm alguem poderia me ajudar? minha constraint (log)

{
  "fieldName" : "pedido",
  "initialValue" : "{\r\n  \"oPERFAT\" : \"2\",\r\n  \"cONTRATOMDW\" : \"FLUIG\",\r\n  \"dATAENTREGA\" : \"20180801\",\r\n  \"nQTDE\" : 1.0,\r\n  \"tIPOPV\" : \"N\",\r\n  \"cENTROCUSTO\" : \"252\",\r\n  \"cODCLIENTE\" : \"005792\",\r\n  \"tIPOCLIENTE\" : \"F\",\r\n  \"nATUREZA\" : \"111\",\r\n  \"lOJACLIENTE\" : \"01\",\r\n  \"vENDEDOR\" : \"005677\",\r\n  \"cONDPAG\" : \"003\",\r\n  \"mSGNOTA\" : \"FLUIG TESTE\",\r\n  \"nPRCVENDA\" : 1000.0,\r\n  \"cGC\" : \"60820750000131\"\r\n}",
  "finalValue" : "{\r\n  \"oPERFAT\" : \"2\",\r\n  \"cONTRATOMDW\" : \"FLUIG\",\r\n  \"dATAENTREGA\" : \"20180801\",\r\n  \"nQTDE\" : 1.0,\r\n  \"tIPOPV\" : \"N\",\r\n  \"cENTROCUSTO\" : \"252\",\r\n  \"cODCLIENTE\" : \"005792\",\r\n  \"tIPOCLIENTE\" : \"F\",\r\n  \"nATUREZA\" : \"111\",\r\n  \"lOJACLIENTE\" : \"01\",\r\n  \"vENDEDOR\" : \"005677\",\r\n  \"cONDPAG\" : \"003\",\r\n  \"mSGNOTA\" : \"FLUIG TESTE\",\r\n  \"nPRCVENDA\" : 1000.0,\r\n  \"cGC\" : \"60820750000131\"\r\n}",
  "fieldType" : null,
  "likeSearch" : false,
  "constraintType" : "MUST"
}

//retorno do dataset

{
  "values" : [ [ "javax.xml.ws.soap.SOAPFaultException: INTERNAL SERVER ERROR", "{\r\n  \"oPERFAT\" : \"\",\r\n  \"cONTRATOMDW\" : \"\",\r\n  \"dATAENTREGA\" : \"\",\r\n  \"nQTDE\" : \"\",\r\n  \"tIPOPV\" : \"\",\r\n  \"cENTROCUSTO\" : \"\",\r\n  \"cODCLIENTE\" : \"\",\r\n  \"tIPOCLIENTE\" : \"\",\r\n  \"nATUREZA\" : \"\",\r\n  \"lOJACLIENTE\" : \"\",\r\n  \"vENDEDOR\" : \"\",\r\n  \"cONDPAG\" : \"\",\r\n  \"mSGNOTA\" : \"\",\r\n  \"nPRCVENDA\" : \"\",\r\n  \"cGC\" : \"\"\r\n}" ] ],
  "indexes" : [ ],
  "fieldTypes" : {
    "pedidov" : "STRING",
    "error" : "STRING"
  },
  "map" : [ {
    "pedidov" : "{\r\n  \"oPERFAT\" : \"\",\r\n  \"cONTRATOMDW\" : \"\",\r\n  \"dATAENTREGA\" : \"\",\r\n  \"nQTDE\" : \"\",\r\n  \"tIPOPV\" : \"\",\r\n  \"cENTROCUSTO\" : \"\",\r\n  \"cODCLIENTE\" : \"\",\r\n  \"tIPOCLIENTE\" : \"\",\r\n  \"nATUREZA\" : \"\",\r\n  \"lOJACLIENTE\" : \"\",\r\n  \"vENDEDOR\" : \"\",\r\n  \"cONDPAG\" : \"\",\r\n  \"mSGNOTA\" : \"\",\r\n  \"nPRCVENDA\" : \"\",\r\n  \"cGC\" : \"\"\r\n}",
    "error" : "javax.xml.ws.soap.SOAPFaultException: INTERNAL SERVER ERROR"
  } ],
  "columnsCount" : 2,
  "rowsCount" : 1,
  "columnsName" : [ "error", "pedidov" ],
  "keyFields" : null,
  "updatedRows" : [ ],
  "insertedRows" : [ [ "javax.xml.ws.soap.SOAPFaultException: INTERNAL SERVER ERROR", "{\r\n  \"oPERFAT\" : \"\",\r\n  \"cONTRATOMDW\" : \"\",\r\n  \"dATAENTREGA\" : \"\",\r\n  \"nQTDE\" : \"\",\r\n  \"tIPOPV\" : \"\",\r\n  \"cENTROCUSTO\" : \"\",\r\n  \"cODCLIENTE\" : \"\",\r\n  \"tIPOCLIENTE\" : \"\",\r\n  \"nATUREZA\" : \"\",\r\n  \"lOJACLIENTE\" : \"\",\r\n  \"vENDEDOR\" : \"\",\r\n  \"cONDPAG\" : \"\",\r\n  \"mSGNOTA\" : \"\",\r\n  \"nPRCVENDA\" : \"\",\r\n  \"cGC\" : \"\"\r\n}" ] ],
  "deletedRows" : [ ],
  "keyFieldsAndIndex" : { },
  "insertOrUpdateRows" : [ ]
}

//estrutura do metodo que esta sendo chamado

<soap:Body>
   <PEDIDOV>
      <CENTROCUSTO>STRING</CENTROCUSTO>
      <CGC>STRING</CGC>
      <CODCLIENTE>STRING</CODCLIENTE>
      <CONDPAG>STRING</CONDPAG>
      <CONTRATOMDW>STRING</CONTRATOMDW>
      <DATAENTREGA>STRING</DATAENTREGA>
      <LOJACLIENTE>STRING</LOJACLIENTE>
      <MSGNOTA>STRING</MSGNOTA>
      <NATUREZA>STRING</NATUREZA>
      <NPRCVENDA>FLOAT</NPRCVENDA>
      <NQTDE>FLOAT</NQTDE>
      <OPERFAT>STRING</OPERFAT>
      <TIPOCLIENTE>STRING</TIPOCLIENTE>
      <TIPOPV>STRING</TIPOPV>
      <VENDEDOR>STRING</VENDEDOR>
   </PEDIDOV>
</soap:Body>

//meu after prossesing

var pedido = {

             "oPERFAT"         : "2",
             "cONTRATOMDW"     : form.getValue("CCONTRATOMDW"),
             "dATAENTREGA"     : form.getValue("dATAENTREGA"),
             "nQTDE"         : parseFloat(form.getValue("NNQTDE")),
             "tIPOPV"         : form.getValue("tIPOPV"),
             "cENTROCUSTO"     : form.getValue("cENTROCUSTO"),
             "cODCLIENTE"     : form.getValue("cODCLIENTE"),
             "tIPOCLIENTE"     : form.getValue("tIPOCLIENTE"),
             "nATUREZA"     : form.getValue("nATUREZA"),
             "lOJACLIENTE"     : form.getValue("lOJACLIENTE"),
             "vENDEDOR"     : form.getValue("vENDEDOR"),
             "cONDPAG"         : form.getValue("CCONDPAG"),
             "mSGNOTA"         : form.getValue("CHISTTIT"),
             "nPRCVENDA"     : parseFloat(form.getValue("NNPRCVENDA")),
             "cGC"             : form.getValue("CCGC")            

    }

    var pedidoStr = JSONUtil.toJSON(pedido);

    var constrPedido = DatasetFactory.createConstraint("pedido", pedidoStr, pedidoStr, ConstraintType.MUST);

    var dataset = DatasetFactory.getDataset("ds_pedidoVendoProd", null, new Array(constrPedido), null);


    return dataset; 

}