I know there is a soap object for getting lead changes but the startPosition is not working...
request
<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:tns="http://www.marketo.com/mktows/">
<soap:Header><AuthenticationHeader><mktowsUserId>datah</mktowsUserId><requestSignature>caf6eeef</requestSignature><requestTimestamp>2014-10-11T00:28:49+00:00</requestTimestamp></AuthenticationHeader></soap:Header>
<soap:Body>
<paramsGetLeadChanges xmlns:tns="http://www.marketo.com/mktows/" xmlns="http://www.marketo.com/mktows/"> <batchSize>1</batchSize>
<startPosition>
<offset>ID:122</offset>
</startPosition>
</paramsGetLeadChanges>
</soap:Body>
</soap:Envelope>
res {
"returnCount": 0,
"remainingCount": 0,
"newStartPosition": {
"oldestCreatedAt": "2014-10-10T00:28:45.000Z",
"activityCreatedAt": "2014-10-10T00:28:45.000Z",
"offset": "ID:122"
}
}