GetLatestTransaction

Transaction service 1.0: Returns the External transaction log entry with the highest transaction number for one integration.


Service	Transaction 1.0
Endpoint	`POST https://app{server-number}.timelog.com/{account}/WebServices/Transaction/V1_0/TransactionServiceSecure.svc`
SOAPAction	`GetLatestTransactionRequest`
Content-Type	`text/xml; charset=utf-8`
Authentication	A token from GetToken
Changes data	No
Safe to retry	Yes

How it works

Omitting systemName returns the highest-numbered entry across every integration of the account. Typical use is "which run number did we reach?" - but any API user can write an entry with a higher number for any system, so do not use the result as the only resume point of a sync; keep the watermark on your side.

Parameters

Each parameter has one label: Required, Conditional (required depending on other values) or Optional. Send them in the order shown.

systemNamestring

Optional. Integration HANDLER name, exact match.

tokenSecurityToken

Required

The token from GetToken: Initials, Expires and Hash, sent back unchanged.

Request

POST /{account}/WebServices/Transaction/V1_0/TransactionServiceSecure.svc HTTP/1.1
Host: app{server-number}.timelog.com
Content-Type: text/xml; charset=utf-8
SOAPAction: "GetLatestTransactionRequest"

<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/"
                  xmlns:transactio="http://www.timelog.com/api/tlp/v1_0"
                  xmlns:tok="http://www.timelog.com/api/tlp/v1_3">
  <soapenv:Body>
    <transactio:GetLatestTransaction>
      <transactio:systemName>{systemName}</transactio:systemName>
      <transactio:token>
        <tok:Initials>{Initials from GetToken}</tok:Initials>
        <tok:Expires>{Expires from GetToken, unchanged}</tok:Expires>
        <tok:Hash>{Hash from GetToken}</tok:Hash>
      </transactio:token>
    </transactio:GetLatestTransaction>
  </soapenv:Body>
</soapenv:Envelope>

curl -X POST "https://app{server-number}.timelog.com/{account}/WebServices/Transaction/V1_0/TransactionServiceSecure.svc" \
  -H "Content-Type: text/xml; charset=utf-8" \
  -H 'SOAPAction: "GetLatestTransactionRequest"' \
  --data-binary @request.xml

import requests

URL = "https://app{server-number}.timelog.com/{account}/WebServices/Transaction/V1_0/TransactionServiceSecure.svc"
SOAP_ACTION = '"GetLatestTransactionRequest"'

envelope = """<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/"
                  xmlns:transactio="http://www.timelog.com/api/tlp/v1_0"
                  xmlns:tok="http://www.timelog.com/api/tlp/v1_3">
  <soapenv:Body>
    <transactio:GetLatestTransaction>
      <transactio:systemName>{systemName}</transactio:systemName>
      <transactio:token>
        <tok:Initials>{Initials from GetToken}</tok:Initials>
        <tok:Expires>{Expires from GetToken, unchanged}</tok:Expires>
        <tok:Hash>{Hash from GetToken}</tok:Hash>
      </transactio:token>
    </transactio:GetLatestTransaction>
  </soapenv:Body>
</soapenv:Envelope>"""

response = requests.post(
    URL,
    data=envelope.encode("utf-8"),
    headers={"Content-Type": "text/xml; charset=utf-8", "SOAPAction": SOAP_ACTION},
    timeout=60,
)
result = parse_result(response)  # see "Responses and errors"

Replace every {…} placeholder with your own value.

Response

The call returns the standard response envelope. Check ResponseState first: a failed call still returns HTTP 200.

ResponseStatestring

Required

Success, Invalid or Error.

ErrorCodeinteger

0 on success, otherwise the error code. See Errors.

ReturnExternalTransaction[]

Response<ExternalTransaction>: Return holds zero or one entry. Only the duration message is added. ResponseState Success with an empty Return when the integration has no entry or the name matches no handler.

Example response

HTTP/1.1 200 OK
Content-Type: text/xml; charset=utf-8

<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/">
  <s:Body>
    <GetLatestTransactionResponse xmlns="http://www.timelog.com/api/tlp/v1_0">
      <GetLatestTransactionResult xmlns:a="http://api.timelog.com"
                                  xmlns:b="http://schemas.datacontract.org/2004/07/TimeLog.TLP.API.Proxy.Transaction.V1_0"
                                  xmlns:i="http://www.w3.org/2001/XMLSchema-instance">
        <a:Return>
          <b:ExternalTransaction>
            <b:SystemName>Example system</b:SystemName>
            <b:TransactionID>1001</b:TransactionID>
            <b:Status>Pending</b:Status>
            <b:Header>Example</b:Header>
            <b:Message>Example</b:Message>
            <b:TransactionDate>2026-10-01T00:00:00</b:TransactionDate>
            <b:Created>2026-10-01T00:00:00</b:Created>
          </b:ExternalTransaction>
        </a:Return>
        <a:ReturnTypeDescription>ExternalTransaction</a:ReturnTypeDescription>
        <a:Request>…</a:Request>
        <a:ResponseState>Success</a:ResponseState>
        <a:Messages>
          <a:APIMessage>
            <a:Message>Duration of call was 0,0421337 sec.</a:Message>
            <a:Severity>Message</a:Severity>
            <a:ErrorCode>0</a:ErrorCode>
          </a:APIMessage>
        </a:Messages>
        <a:ErrorCode>0</a:ErrorCode>
        <a:IsReturnPaged>false</a:IsReturnPaged>
        <a:TotalPageCount>0</a:TotalPageCount>
      </GetLatestTransactionResult>
    </GetLatestTransactionResponse>
  </s:Body>
</s:Envelope>

Illustrative example: built from the service description (WSDL) in the same format as a real response, with made-up values. The Request block is shortened.

Errors

All errors come back with HTTP 200: check ResponseState, ErrorCode and Messages. The errors every operation can return (expired or invalid token, API not enabled, HTTPS required, general errors) are listed once in Responses and errors.

Errors specific to this operation:

ResponseState	ErrorCode	Message	What it means	What to do
Error	40001	Error during call on TimeLog.API, Message 'Unable to retrieve External Transaction Log by System Name {systemName}\r
In Stored Procedure: {procedure}'	Known triggers on GetTransactions: `from` or `to` omitted or before 1753-01-01 and a negative maxResults.	Send both dates within 1753-9999 and maxResults >= 1.
Error	—	—	The highest-numbered entry has Status 0 - every call faults until it is overwritten.	Always send Status.

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