getLeadChanges

Last update: Wed Jun 05 2024 00:00:00 GMT+0000 (Coordinated Universal Time)

CREATED FOR:

  • Admin

This API is like getLeadActivity except that it operates on multiple leads at once. The operation checks for new leads created, lead field updates and other activities.

The result contains activities that caused the change along with a stream position to paginate through large result sets.

You must include an input parameter identifying which activity filters you wish to be returned in the result. If you want all activities, a blank value may be passed. For more than one activity filter, pass in a list of activity filters.

Some example activity types are: ‘Visit Webpage’, ‘Fill Out Form’, and ‘Click Link’.

After SOAP API version 2_2 you can include a leadSelector.

For LastUpdateAtSelector, the oldestUpdatedAt value would correspond to the oldestCreatedAt value in the startPosition. And the latestUpdatedAt value would corresponds to the latestCreatedAt value in the startPosition.

Note: The limit number of leads supported in a LeadKeySelector is 100. If the number of leads exceeds 100, the API throws a bad parameter exception and return a SOAP fault.

Request

Field Name
Required/Optional
Description
activityFilter->includeAttributes->activityType
Optional (deprecated) Use activityNameFilter instead
Limits the response to include only those activity types specified. See WSDL for all activity types.
activityFilter->excludeAttributes->activityType
Optional
Limits the response to exclude the specified activity types. See WSDL for all activity types. NOTE: You cannot specify both includeAttributes and excludeAttributes within the same call.
activityNameFilter
Optional
Limits the response to include only the specified activity filters.
batchSize
Optional
Maximum number of records to be returned. System limited to 1,000 or batchSize, whichever is less.
startPosition
Required
Used to paginate through large number of activity responses.
startPosition->offset
Optional
The offset value is returned by the previous calls response field newStartPosition->offset.
startPosition->oldestCreatedAt
Optional
The timestamp used to filter results to only include leads created since the oldestCreatedAt. NOTE: You can use LastUpdateAtSelector->oldestUpdatedAt timestamp to specify oldestCreatedAt.
startPosition->activityCreatedAt
Optional
The timestamp used to filter results to only include leads with activity since activityCreatedAt. NOTE: You can use LastUpdateAtSelector->latestUpdatedAt timestamp to specify activityCreatedAt.
leadSelector
Optional
Can be one of the following 3 types: LeadKeySelector, StaticListSelector, LastUpdateAtSelector
LeadKeySelector: leadSelector->keyType
Required
The id type that you wish to query. Values include IDNUM, COOKIE, EMAIL, LEADOWNEREMAIL, SFDCACCOUNTID, SFDCCONTACTID, SFDCLEADID, SFDCLEADOWNERID, SFDCOPPTYID.
LeadKeySelector: leadSelector->keyValues->stringItem
Required
List of key values. That is, “lead@email.com”
StaticListSelector: leadSelector->staticListName
Optional when leadSelector->staticListId is present
The name of the static list
StaticListSelector: leadSelector->staticListId
Optional when leadSelector->staticListName is present
The ID of the static list

Request XML

<?xml version="1.0" encoding="UTF-8"?>
<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:ns1="http://www.marketo.com/mktows/">
  <SOAP-ENV:Header>
    <ns1:AuthenticationHeader>
      <mktowsUserId>demo17_1_809934544BFABAE58E5D27</mktowsUserId>
      <requestSignature>59e88471266a7495590941586ef6a96849ea8e11</requestSignature>
      <requestTimestamp>2013-08-02T17:22:53-07:00</requestTimestamp>
    </ns1:AuthenticationHeader>
  </SOAP-ENV:Header>
  <SOAP-ENV:Body>
    <ns1:paramsGetLeadChanges>
      <startPosition>
        <oldestCreatedAt>2013-08-01T00:13:13+00:00</oldestCreatedAt>
      </startPosition>
      <activityNameFilter>
        <stringItem>Visit Webpage</stringItem>
        <stringItem>Click Link</stringItem>
      </activityNameFilter>
      <batchSize>10</batchSize>
    </ns1:paramsGetLeadChanges>
  </SOAP-ENV:Body>
</SOAP-ENV:Envelope>

Response XML

<?xml version="1.0" encoding="UTF-8"?>
<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ns1="http://www.marketo.com/mktows/">
  <SOAP-ENV:Body>
    <ns1:successGetLeadChanges>
      <result>
        <returnCount>10</returnCount>
        <remainingCount>576</remainingCount>
        <newStartPosition>
          <latestCreatedAt xsi:nil="true" />
          <oldestCreatedAt>2013-08-01T00:13:13+00:00</oldestCreatedAt>
          <activityCreatedAt xsi:nil="true" />
          <offset>ID:1086173</offset>
        </newStartPosition>
        <leadChangeRecordList>
          <leadChangeRecord>
            <id>1037189</id>
            <activityDateTime>2013-08-01T00:00:09-05:00</activityDateTime>
            <activityType>Change Data Value</activityType>
            <mktgAssetName>Lead Score</mktgAssetName>
            <activityAttributes>
              <attribute>
                <attrName>Attribute Name</attrName>
                <attrType xsi:nil="true" />
                <attrValue>Lead Score</attrValue>
              </attribute>
              <attribute>
                <attrName>Old Value</attrName>
                <attrType xsi:nil="true" />
                <attrValue>402</attrValue>
              </attribute>
              <attribute>
                <attrName>New Value</attrName>
                <attrType xsi:nil="true" />
                <attrValue>403</attrValue>
              </attribute>
              <attribute>
                <attrName>Reason</attrName>
                <attrType xsi:nil="true" />
                <attrValue>Changed by Smart Campaign Japanese form fillout.test time zone action Change Score</attrValue>
              </attribute>
              <attribute>
                <attrName>Step ID</attrName>
                <attrType xsi:nil="true" />
                <attrValue>19582</attrValue>
              </attribute>
              <attribute>
                <attrName>Choice Number</attrName>
                <attrType xsi:nil="true" />
                <attrValue>0</attrValue>
              </attribute>
              <attribute>
                <attrName>Lead ID</attrName>
                <attrType xsi:nil="true" />
                <attrValue>84105</attrValue>
              </attribute>
            </activityAttributes>
            <campaign>Japanese form fillout.test time zone</campaign>
            <mktPersonId>84105</mktPersonId>
          </leadChangeRecord>
          <leadChangeRecord>
            <id>1037190</id>
            <activityDateTime>2013-08-01T02:37:17-05:00</activityDateTime>
            <activityType>Change Data Value</activityType>
            <mktgAssetName>Marketo Social Facebook Reach</mktgAssetName>
            <activityAttributes>
              <attribute>
                <attrName>Attribute Name</attrName>
                <attrType xsi:nil="true" />
                <attrValue>Marketo Social Facebook Reach</attrValue>
              </attribute>
              <attribute>
                <attrName>Old Value</attrName>
                <attrType xsi:nil="true" />
                <attrValue>574</attrValue>
              </attribute>
              <attribute>
                <attrName>New Value</attrName>
                <attrType xsi:nil="true" />
                <attrValue>571</attrValue>
              </attribute>
              <attribute>
                <attrName>Reason</attrName>
                <attrType xsi:nil="true" />
                <attrValue>Form fill-out, URL: <unknown></attrValue>
              </attribute>
              <attribute>
                <attrName>Lead ID</attrName>
                <attrType xsi:nil="true" />
                <attrValue>1086478</attrValue>
              </attribute>
            </activityAttributes>
            <mktPersonId>1086478</mktPersonId>
          </leadChangeRecord>
          <leadChangeRecord>
            <id>1037193</id>
            <activityDateTime>2013-08-01T11:19:26-05:00</activityDateTime>
            <activityType>Change Data Value</activityType>
            <mktgAssetName>Lead Score</mktgAssetName>
            <activityAttributes>
              <attribute>
                <attrName>Attribute Name</attrName>
                <attrType xsi:nil="true" />
                <attrValue>Lead Score</attrValue>
              </attribute>
              <attribute>
                <attrName>Old Value</attrName>
                <attrType xsi:nil="true" />
                <attrValue />
              </attribute>
              <attribute>
                <attrName>New Value</attrName>
                <attrType xsi:nil="true" />
                <attrValue>1</attrValue>
              </attribute>
              <attribute>
                <attrName>Reason</attrName>
                <attrType xsi:nil="true" />
                <attrValue>Changed by Smart Campaign Visit any web page action Change Score</attrValue>
              </attribute>
              <attribute>
                <attrName>Step ID</attrName>
                <attrType xsi:nil="true" />
                <attrValue>11156</attrValue>
              </attribute>
              <attribute>
                <attrName>Choice Number</attrName>
                <attrType xsi:nil="true" />
                <attrValue>0</attrValue>
              </attribute>
              <attribute>
                <attrName>Lead ID</attrName>
                <attrType xsi:nil="true" />
                <attrValue>1090235</attrValue>
              </attribute>
            </activityAttributes>
            <campaign>Visit any web page</campaign>
            <mktPersonId>1090235</mktPersonId>
          </leadChangeRecord>
          <leadChangeRecord>
            <id>1082831</id>
            <activityDateTime>2013-08-01T13:10:17-05:00</activityDateTime>
            <activityType>Change Data Value</activityType>
            <mktgAssetName>First Name</mktgAssetName>
            <activityAttributes>
              <attribute>
                <attrName>Attribute Name</attrName>
                <attrType xsi:nil="true" />
                <attrValue>First Name</attrValue>
              </attribute>
              <attribute>
                <attrName>Old Value</attrName>
                <attrType xsi:nil="true" />
                <attrValue>George</attrValue>
              </attribute>
              <attribute>
                <attrName>New Value</attrName>
                <attrType xsi:nil="true" />
                <attrValue>Travis</attrValue>
              </attribute>
              <attribute>
                <attrName>Reason</attrName>
                <attrType xsi:nil="true" />
                <attrValue>SOAP API</attrValue>
              </attribute>
              <attribute>
                <attrName>Lead ID</attrName>
                <attrType xsi:nil="true" />
                <attrValue>1089965</attrValue>
              </attribute>
            </activityAttributes>
            <mktPersonId>1089965</mktPersonId>
          </leadChangeRecord>
          <leadChangeRecord>
            <id>1082843</id>
            <activityDateTime>2013-08-01T13:10:19-05:00</activityDateTime>
            <activityType>Change Data Value</activityType>
            <mktgAssetName>Last Name</mktgAssetName>
            <activityAttributes>
              <attribute>
                <attrName>Attribute Name</attrName>
                <attrType xsi:nil="true" />
                <attrValue>Last Name</attrValue>
              </attribute>
              <attribute>
                <attrName>Old Value</attrName>
                <attrType xsi:nil="true" />
                <attrValue>of the Jungle</attrValue>
              </attribute>
              <attribute>
                <attrName>New Value</attrName>
                <attrType xsi:nil="true" />
                <attrValue>Kaufman</attrValue>
              </attribute>
              <attribute>
                <attrName>Reason</attrName>
                <attrType xsi:nil="true" />
                <attrValue>SOAP API</attrValue>
              </attribute>
              <attribute>
                <attrName>Lead ID</attrName>
                <attrType xsi:nil="true" />
                <attrValue>1089965</attrValue>
              </attribute>
            </activityAttributes>
            <mktPersonId>1089965</mktPersonId>
          </leadChangeRecord>
          <leadChangeRecord>
            <id>1086153</id>
            <activityDateTime>2013-08-01T13:21:51-05:00</activityDateTime>
            <activityType>Change Data Value</activityType>
            <mktgAssetName>Urgency</mktgAssetName>
            <activityAttributes>
              <attribute>
                <attrName>Attribute Name</attrName>
                <attrType xsi:nil="true" />
                <attrValue>Urgency</attrValue>
              </attribute>
              <attribute>
                <attrName>Old Value</attrName>
                <attrType xsi:nil="true" />
                <attrValue />
              </attribute>
              <attribute>
                <attrName>New Value</attrName>
                <attrType xsi:nil="true" />
                <attrValue>25</attrValue>
              </attribute>
              <attribute>
                <attrName>Reason</attrName>
                <attrType xsi:nil="true" />
                <attrValue>Changed by Smart Campaign Operational Campaign - ML action Change Score</attrValue>
              </attribute>
              <attribute>
                <attrName>Source</attrName>
                <attrType xsi:nil="true" />
                <attrValue>Lead update</attrValue>
              </attribute>
              <attribute>
                <attrName>Lead ID</attrName>
                <attrType xsi:nil="true" />
                <attrValue>1090236</attrValue>
              </attribute>
            </activityAttributes>
            <mktPersonId>1090236</mktPersonId>
          </leadChangeRecord>
          <leadChangeRecord>
            <id>1086166</id>
            <activityDateTime>2013-08-01T13:21:53-05:00</activityDateTime>
            <activityType>Change Data Value</activityType>
            <mktgAssetName>Relative Urgency</mktgAssetName>
            <activityAttributes>
              <attribute>
                <attrName>Attribute Name</attrName>
                <attrType xsi:nil="true" />
                <attrValue>Relative Urgency</attrValue>
              </attribute>
              <attribute>
                <attrName>Old Value</attrName>
                <attrType xsi:nil="true" />
                <attrValue />
              </attribute>
              <attribute>
                <attrName>New Value</attrName>
                <attrType xsi:nil="true" />
                <attrValue>1</attrValue>
              </attribute>
              <attribute>
                <attrName>Reason</attrName>
                <attrType xsi:nil="true" />
                <attrValue>Changed by Smart Campaign Operational Campaign - ML action Change Score</attrValue>
              </attribute>
              <attribute>
                <attrName>Source</attrName>
                <attrType xsi:nil="true" />
                <attrValue>Lead update</attrValue>
              </attribute>
              <attribute>
                <attrName>Lead ID</attrName>
                <attrType xsi:nil="true" />
                <attrValue>1090236</attrValue>
              </attribute>
            </activityAttributes>
            <mktPersonId>1090236</mktPersonId>
          </leadChangeRecord>
          <leadChangeRecord>
            <id>1086167</id>
            <activityDateTime>2013-08-01T13:21:53-05:00</activityDateTime>
            <activityType>Change Data Value</activityType>
            <mktgAssetName>Relative Score</mktgAssetName>
            <activityAttributes>
              <attribute>
                <attrName>Attribute Name</attrName>
                <attrType xsi:nil="true" />
                <attrValue>Relative Score</attrValue>
              </attribute>
              <attribute>
                <attrName>Old Value</attrName>
                <attrType xsi:nil="true" />
                <attrValue />
              </attribute>
              <attribute>
                <attrName>New Value</attrName>
                <attrType xsi:nil="true" />
                <attrValue>1</attrValue>
              </attribute>
              <attribute>
                <attrName>Reason</attrName>
                <attrType xsi:nil="true" />
                <attrValue>Changed by Smart Campaign Operational Campaign - ML action Change Score</attrValue>
              </attribute>
              <attribute>
                <attrName>Source</attrName>
                <attrType xsi:nil="true" />
                <attrValue>Lead update</attrValue>
              </attribute>
              <attribute>
                <attrName>Lead ID</attrName>
                <attrType xsi:nil="true" />
                <attrValue>1090236</attrValue>
              </attribute>
            </activityAttributes>
            <mktPersonId>1090236</mktPersonId>
          </leadChangeRecord>
          <leadChangeRecord>
            <id>1086169</id>
            <activityDateTime>2013-08-01T13:21:53-05:00</activityDateTime>
            <activityType>Change Data Value</activityType>
            <mktgAssetName>Priority</mktgAssetName>
            <activityAttributes>
              <attribute>
                <attrName>Attribute Name</attrName>
                <attrType xsi:nil="true" />
                <attrValue>Priority</attrValue>
              </attribute>
              <attribute>
                <attrName>Old Value</attrName>
                <attrType xsi:nil="true" />
                <attrValue />
              </attribute>
              <attribute>
                <attrName>New Value</attrName>
                <attrType xsi:nil="true" />
                <attrValue>70</attrValue>
              </attribute>
              <attribute>
                <attrName>Reason</attrName>
                <attrType xsi:nil="true" />
                <attrValue>Changed by Smart Campaign Operational Campaign - ML action Change Score</attrValue>
              </attribute>
              <attribute>
                <attrName>Source</attrName>
                <attrType xsi:nil="true" />
                <attrValue>Lead update</attrValue>
              </attribute>
              <attribute>
                <attrName>Lead ID</attrName>
                <attrType xsi:nil="true" />
                <attrValue>1090236</attrValue>
              </attribute>
            </activityAttributes>
            <mktPersonId>1090236</mktPersonId>
          </leadChangeRecord>
          <leadChangeRecord>
            <id>1086173</id>
            <activityDateTime>2013-08-01T13:21:53-05:00</activityDateTime>
            <activityType>Change Data Value</activityType>
            <mktgAssetName>Lead Score</mktgAssetName>
            <activityAttributes>
              <attribute>
                <attrName>Attribute Name</attrName>
                <attrType xsi:nil="true" />
                <attrValue>Lead Score</attrValue>
              </attribute>
              <attribute>
                <attrName>Old Value</attrName>
                <attrType xsi:nil="true" />
                <attrValue />
              </attribute>
              <attribute>
                <attrName>New Value</attrName>
                <attrType xsi:nil="true" />
                <attrValue>25</attrValue>
              </attribute>
              <attribute>
                <attrName>Reason</attrName>
                <attrType xsi:nil="true" />
                <attrValue>Changed by Smart Campaign Operational Campaign - ML action Change Score</attrValue>
              </attribute>
              <attribute>
                <attrName>Step ID</attrName>
                <attrType xsi:nil="true" />
                <attrValue>12259</attrValue>
              </attribute>
              <attribute>
                <attrName>Choice Number</attrName>
                <attrType xsi:nil="true" />
                <attrValue>0</attrValue>
              </attribute>
              <attribute>
                <attrName>Lead ID</attrName>
                <attrType xsi:nil="true" />
                <attrValue>1090236</attrValue>
              </attribute>
            </activityAttributes>
            <campaign>Operational Campaign - ML</campaign>
            <mktPersonId>1090236</mktPersonId>
          </leadChangeRecord>
        </leadChangeRecordList>
      </result>
    </ns1:successGetLeadChanges>
  </SOAP-ENV:Body>
</SOAP-ENV:Envelope>

Sample Code - PHP

<?php
$debug = true;
$marketoSoapEndPoint    = "";  // CHANGE ME
$marketoUserId      = "";  // CHANGE ME
$marketoSecretKey   = ""; // CHANGE ME
$marketoNameSpace   = "http://www.marketo.com/mktows/";

// Create Signature
$dtzObj = new DateTimeZone("America/Los_Angeles");
$dtObj  = new DateTime('now', $dtzObj);
$timeStamp = $dtObj->format(DATE_W3C);
$encryptString = $timeStamp . $marketoUserId;
$signature = hash_hmac('sha1', $encryptString, $marketoSecretKey);

// Create SOAP Header
$attrs = new stdClass();
$attrs->mktowsUserId = $marketoUserId;
$attrs->requestSignature = $signature;
$attrs->requestTimestamp = $timeStamp;
$authHdr = new SoapHeader($marketoNameSpace, 'AuthenticationHeader', $attrs);
$options = array("connection_timeout" => 600, "location" => $marketoSoapEndPoint);
if ($debug) {
  $options["trace"] = 1;
}

// Create Request
$params = new stdClass();
$filter = new stdClass();

$keyValues = array("Visit Webpage", "Click Link");
$filter->stringItem = $keyValues;
$params->activityNameFilter = $filter;

$streamPos = new stdClass();
$streamPos->oldestCreatedAt = "2013-08-01T00:13:13+00:00";
$params->startPosition = $streamPos;
$params->batchSize = 10;
$authHdr = new SoapHeader($marketoNameSpace, 'AuthenticationHeader', $attrs);
$client = new SoapClient($marketoSoapEndPoint ."?WSDL", $options);
$doPage = true;
while($doPage) {
  $success = $client->__soapCall('getLeadChanges', array($params), null, $authHdr);
  $result = $success->result;
  $doPage = ($result->remainingCount > 0);
  $streamPos = $result->newStartPosition;
  $params->startPosition = $streamPos;
  if ($debug) {
    print "RAW request:\n" .$client->__getLastRequest() ."\n";
    print "RAW response:\n" .$client->__getLastResponse() ."\n";
  }
}
return;
?>

Sample Code - Java

import com.marketo.mktows.*;
import java.net.URL;
import javax.xml.namespace.QName;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import javax.xml.datatype.XMLGregorianCalendar;
import javax.xml.datatype.DatatypeFactory;
import javax.crypto.Mac;
import javax.crypto.spec.SecretKeySpec;
import org.apache.commons.codec.binary.Hex;
import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBElement;
import javax.xml.bind.Marshaller;
import java.util.GregorianCalendar;


public class GetLeadChanges {

    public static void main(String[] args) {
        System.out.println("Executing Get Lead Changes");
        try {
            URL marketoSoapEndPoint = new URL("CHANGE ME" + "?WSDL");
            String marketoUserId = "CHANGE ME";
            String marketoSecretKey = "CHANGE ME";

            QName serviceName = new QName("http://www.marketo.com/mktows/", "MktMktowsApiService");
            MktMktowsApiService service = new MktMktowsApiService(marketoSoapEndPoint, serviceName);
            MktowsPort port = service.getMktowsApiSoapPort();

            // Create Signature
            DateFormat df = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ssZ");
            String text = df.format(new Date());
            String requestTimestamp = text.substring(0, 22) + ":" + text.substring(22);
            String encryptString = requestTimestamp + marketoUserId;

            SecretKeySpec secretKey = new SecretKeySpec(marketoSecretKey.getBytes(), "HmacSHA1");
            Mac mac = Mac.getInstance("HmacSHA1");
            mac.init(secretKey);
            byte[] rawHmac = mac.doFinal(encryptString.getBytes());
            char[] hexChars = Hex.encodeHex(rawHmac);
            String signature = new String(hexChars);

            // Set Authentication Header
            AuthenticationHeader header = new AuthenticationHeader();
            header.setMktowsUserId(marketoUserId);
            header.setRequestTimestamp(requestTimestamp);
            header.setRequestSignature(signature);

            // Create Request
            ParamsGetLeadChanges request = new ParamsGetLeadChanges();

            ObjectFactory objectFactory = new ObjectFactory();
            JAXBElement<Integer> batchSize = objectFactory.createParamsGetLeadActivityBatchSize(10);
            request.setBatchSize(batchSize);

            ArrayOfString activities = new ArrayOfString();
            activities.getStringItems().add("Visit Webpage");
            activities.getStringItems().add("Click Link");

            JAXBElement<ArrayOfString> activityFilter = objectFactory.createParamsGetLeadChangesActivityNameFilter(activities);
            request.setActivityNameFilter(activityFilter);

            // Create oldestCreateAt timestamp from 5 days ago
            GregorianCalendar gc = new GregorianCalendar();
            gc.setTimeInMillis(new Date().getTime());
            gc.add( GregorianCalendar.DAY_OF_YEAR, -5);

            DatatypeFactory factory = DatatypeFactory.newInstance();
            JAXBElement<XMLGregorianCalendar> oldestCreateAtValue =objectFactory.createStreamPositionOldestCreatedAt(factory.newXMLGregorianCalendar(gc));

            StreamPosition sp = new StreamPosition();
            sp.setOldestCreatedAt(oldestCreateAtValue);
            request.setStartPosition(sp);

            SuccessGetLeadChanges result = port.getLeadChanges(request, header);

            JAXBContext context = JAXBContext.newInstance(SuccessGetLeadChanges.class);
            Marshaller m = context.createMarshaller();
            m.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);
            m.marshal(result, System.out);

        }
        catch(Exception e) {
            e.printStackTrace();
        }
    }
}

Sample Code - Ruby

require 'savon' # Use version 2.0 Savon gem
require 'date'

mktowsUserId = "" # CHANGE ME
marketoSecretKey = "" # CHANGE ME
marketoSoapEndPoint = "" # CHANGE ME
marketoNameSpace = "http://www.marketo.com/mktows/"

#Create Signature
Timestamp = DateTime.now
requestTimestamp = Timestamp.to_s
encryptString = requestTimestamp + mktowsUserId
digest = OpenSSL::Digest.new('sha1')
hashedsignature = OpenSSL::HMAC.hexdigest(digest, marketoSecretKey, encryptString)
requestSignature = hashedsignature.to_s

#Create SOAP Header
headers = {
    'ns1:AuthenticationHeader' => { "mktowsUserId" => mktowsUserId, "requestSignature" => requestSignature,
    "requestTimestamp"  => requestTimestamp
    }
}

client = Savon.client(wsdl: 'http://app.marketo.com/soap/mktows/2_3?WSDL', soap_header: headers, endpoint: marketoSoapEndPoint, open_timeout: 90, read_timeout: 90, namespace_identifier: :ns1, env_namespace: 'SOAP-ENV')

#Create Request
request = {
    :start_position => {
        :oldest_created_at => "2013-08-01T00:13:13+00:00" },
    :activity_name_filter => {
        :stringItem => ["Visit Webpage", "Click Link"] },
    :batch_size => "10"
}

response = client.call(:get_lead_changes, message: request)

puts response
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