CreateSubTask

Project management service 1.8: Creates a task as the last sub-task of a parent task, on the parent's contract by default.


Service	Project management 1.8
Endpoint	`POST https://app{server-number}.timelog.com/{account}/WebServices/ProjectManagement/V1_8/ProjectManagementServiceSecure.svc`
SOAPAction	`CreateSubTaskRequest`
Content-Type	`text/xml; charset=utf-8`
Authentication	A token from GetToken
Changes data	Yes
Safe to retry	Send a client-generated Task.ID: a retried create that went through fails instead of duplicating.

How it works

Loads the project, loads the parent task by integer ID and finds the task with the SAME WBS NUMBER in the project, builds a new sub-task numbered '<parent WBS><n+1>', maps the Task you send, defaults ProjectSubContractID to the parent's contract, applies HourlyRateID and saves the project. With Details.WBS set the project is re-loaded and the sub-task is inserted at that WBS number instead. A task that already has allocations cannot become a parent.

Parameters

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

taskTask

Required

The Task to send. Its fields are listed below.

parentTaskIdinteger

Required

Integer TaskID of the parent task. Only its WBS number is used to find the parent inside projectID.

projectIDinteger

Required

Integer ID of the project that holds the parent task. Must be the parent's own project.

tokenSecurityToken

Required

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

Request

POST /{account}/WebServices/ProjectManagement/V1_8/ProjectManagementServiceSecure.svc HTTP/1.1
Host: app{server-number}.timelog.com
Content-Type: text/xml; charset=utf-8
SOAPAction: "CreateSubTaskRequest"

<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/"
                  xmlns:pm="http://www.timelog.com/api/tlp/v1_8"
                  xmlns:tok="http://www.timelog.com/api/tlp/v1_3"
                  xmlns:tlp="http://www.timelog.com/api/tlp/v1_7">
  <soapenv:Body>
    <pm:CreateSubTask>
      <pm:task>
        <tlp:Name>{Name}</tlp:Name>
        <tlp:StartDate>{StartDate}</tlp:StartDate>
        <tlp:EndDate>{EndDate}</tlp:EndDate>
        <tlp:TaskTypeID>{TaskTypeID}</tlp:TaskTypeID>
        <!-- more fields: see Parameters -->
      </pm:task>
      <pm:parentTaskId>{parentTaskId}</pm:parentTaskId>
      <pm:projectID>{projectID}</pm:projectID>
      <pm:token>
        <tok:Initials>{Initials from GetToken}</tok:Initials>
        <tok:Expires>{Expires from GetToken, unchanged}</tok:Expires>
        <tok:Hash>{Hash from GetToken}</tok:Hash>
      </pm:token>
    </pm:CreateSubTask>
  </soapenv:Body>
</soapenv:Envelope>

curl -X POST "https://app{server-number}.timelog.com/{account}/WebServices/ProjectManagement/V1_8/ProjectManagementServiceSecure.svc" \
  -H "Content-Type: text/xml; charset=utf-8" \
  -H 'SOAPAction: "CreateSubTaskRequest"' \
  --data-binary @request.xml

import requests

URL = "https://app{server-number}.timelog.com/{account}/WebServices/ProjectManagement/V1_8/ProjectManagementServiceSecure.svc"
SOAP_ACTION = '"CreateSubTaskRequest"'

envelope = """<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/"
                  xmlns:pm="http://www.timelog.com/api/tlp/v1_8"
                  xmlns:tok="http://www.timelog.com/api/tlp/v1_3"
                  xmlns:tlp="http://www.timelog.com/api/tlp/v1_7">
  <soapenv:Body>
    <pm:CreateSubTask>
      <pm:task>
        <tlp:Name>{Name}</tlp:Name>
        <tlp:StartDate>{StartDate}</tlp:StartDate>
        <tlp:EndDate>{EndDate}</tlp:EndDate>
        <tlp:TaskTypeID>{TaskTypeID}</tlp:TaskTypeID>
        <!-- more fields: see Parameters -->
      </pm:task>
      <pm:parentTaskId>{parentTaskId}</pm:parentTaskId>
      <pm:projectID>{projectID}</pm:projectID>
      <pm:token>
        <tok:Initials>{Initials from GetToken}</tok:Initials>
        <tok:Expires>{Expires from GetToken, unchanged}</tok:Expires>
        <tok:Hash>{Hash from GetToken}</tok:Hash>
      </pm:token>
    </pm:CreateSubTask>
  </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.

ReturnBatchContainerOfTask[]

On any failure Return is EMPTY and the envelope is Error.

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>
    <CreateSubTaskResponse xmlns="http://www.timelog.com/api/tlp/v1_8">
      <CreateSubTaskResult xmlns:a="http://www.timelog.com/api/tlp/v1_2"
                           xmlns:b="http://api.timelog.com"
                           xmlns:c="http://www.timelog.com/api/tlp/v1_7"
                           xmlns:d="http://api.timelog.com/services/crm/1_2"
                           xmlns:i="http://www.w3.org/2001/XMLSchema-instance">
        <a:Return>
          <a:BatchContainerOfTask>
            <a:Item>
              <b:Action>Original</b:Action>
              <b:IsCustomFieldsLoaded>false</b:IsCustomFieldsLoaded>
              <b:CustomFields i:nil="true"/>
              <b:IsExternalKeysLoaded>false</b:IsExternalKeysLoaded>
              <b:ExternalKeys i:nil="true"/>
              <c:ID>3f2504e0-4f89-41d3-9a0c-305000000001</c:ID>
              <c:TaskID>1001</c:TaskID>
              <c:Name>Example </c:Name>
              <c:FullName>Example full</c:FullName>
              <c:No>1001</c:No>
              <c:Description>Example</c:Description>
              <c:Link>Example</c:Link>
              <c:BudgetHours>0</c:BudgetHours>
              <c:BudgetAmount>0</c:BudgetAmount>
              <c:StartDate>2026-10-01T00:00:00</c:StartDate>
              <c:EndDate>2026-10-01T00:00:00</c:EndDate>
              <c:TaskTypeID>1001</c:TaskTypeID>
              <c:AdditionalTextIsRequired>false</c:AdditionalTextIsRequired>
              <c:ProjectSubContractID>1001</c:ProjectSubContractID>
              <c:HourlyRateID>1001</c:HourlyRateID>
              <c:IsReadyForInvoicing>false</c:IsReadyForInvoicing>
              <c:Details>
                <c:CustomerHeader>
                  <d:ID>1001</d:ID>
                  <d:Name>Example </d:Name>
                  <d:No>1001</d:No>
                  <d:GUID>3f2504e0-4f89-41d3-9a0c-305000000002</d:GUID>
                </c:CustomerHeader>
                <c:ProjectHeader>
                  <c:ID>1001</c:ID>
                  <c:ProjectGUID>3f2504e0-4f89-41d3-9a0c-305000000003</c:ProjectGUID>
                  <c:Name>Example </c:Name>
                  <c:No>1001</c:No>
                  <c:IsActive>true</c:IsActive>
                  <c:IsGeneralProject>false</c:IsGeneralProject>
                  <c:StartDate>2026-10-01T00:00:00</c:StartDate>
                  <c:EndDate>2026-10-01T00:00:00</c:EndDate>
                  <c:MainContractID>1001</c:MainContractID>
                </c:ProjectHeader>
                <c:Type>
                  <c:ID>1001</c:ID>
                  <c:ID2>0</c:ID2>
                  <c:Name>Example </c:Name>
                  <c:Name2>Example</c:Name2>
                </c:Type>
                <c:CustomField>Example</c:CustomField>
              </c:Details>
              <c:State>
                <c:IsActive>true</c:IsActive>
              </c:State>
            </a:Item>
            <a:Status>Success</a:Status>
            <a:Message>Example</a:Message>
          </a:BatchContainerOfTask>
        </a:Return>
        <a:ReturnTypeDescription>BatchContainerOfTask</a:ReturnTypeDescription>
        <a:Request>…</a:Request>
        <a:ResponseState>Success</a:ResponseState>
        <a:Messages>
          <b:APIMessage>
            <b:Message>Duration of call was 0,0421337 sec.</b:Message>
            <b:Severity>Message</b:Severity>
            <b:ErrorCode>0</b:ErrorCode>
          </b:APIMessage>
        </a:Messages>
        <a:ErrorCode>0</a:ErrorCode>
        <a:IsReturnPaged>false</a:IsReturnPaged>
        <a:TotalPageCount>0</a:TotalPageCount>
      </CreateSubTaskResult>
    </CreateSubTaskResponse>
  </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 'ParentTaskId parameter is mandatory for this API service.'	parentTaskId <= 0.	Send the parent's integer TaskID.
Error	40001	Error during call on TimeLog.API, Message '{rule text}' - one message per violated rule, then 'Task is not in an invalid state to be saved'	Name / dates missing, end before start, or the parent already has allocations.	Send Name, StartDate and EndDate; create sub-tasks only under tasks without allocations.
Error	40001	Error during call on TimeLog.API, Message 'The specified contract ID does not exist in the project.'	ProjectSubContractID is not a contract of the project.	Send 0 or a contract of the project.
Error	40001	Error during call on TimeLog.API, Message 'The specified HourlyRateID {HourlyRateID} do not exist, is in-active or not in the Price List of the Project related to the specified ProjectID: {ProjectID}'	HourlyRateID not valid for the project.	Send 0, or a rate valid for the project's price list.
Error	40001	Error during call on TimeLog.API, Message 'TypeID has to be > 0 on Task. Current value: {TaskTypeID}'	—	Send a TaskTypeID.

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