How can I get a the details for each of a worker’s goals? I especially need goal progress and milestones.

Ideally Human_Resources/Get_Workers/Include_Goals would include progress and milestones. That does not seem to be an option.

The information I need seems to be only in the Talent/Get_Development_Items web interface, however I get Invalid instance ... Contextually_Secured for all variations of valid WID/Goal_Reference_IDs. Can I include Worker ID in the reference to unstick this? Is there a different interface? Am I missing something?

Human_Resources/Get_Workers/Include_Goals request:

    <soapenv:Body>
        <bsvc:Get_Workers_Request bsvc:version="v43.0">
            <bsvc:Request_References>
                <bsvc:Worker_Reference bsvc:Descriptor="Steve">
                    <bsvc:ID bsvc:type="WID">afabf6fbbbbbbbbbbbb233d08</bsvc:ID>
                </bsvc:Worker_Reference>
            </bsvc:Request_References>
            <bsvc:Response_Group>
               <bsvc:Include_Goals>1</bsvc:Include_Goals>
            </bsvc:Response_Group>
        </bsvc:Get_Workers_Request>
    </soapenv:Body>

and Human_Resources/Get_Workers/Include_Goals response:

<wd:Goal_Data>
    <wd:Goal_Reference_ID>GOAL-2-O-51312</wd:Goal_Reference_ID>
    <wd:Goal>A libero quis aspernatur</wd:Goal>
    <wd:Description>Created with care</wd:Description>
    <wd:Due_Date>2019-06-30</wd:Due_Date>
    <wd:Completion_Status_Reference>
        <wd:ID wd:type="WID">ca3af9dsssssssssssssbb79</wd:ID>
        <wd:ID wd:type="Component_Completion_ID">INCOMPLETE</wd:ID>
    </wd:Completion_Status_Reference>
</wd:Goal_Data>

and my Talent/Get_Development_Items request with Goal_Reference_ID.

    <soapenv:Body>
        <bsvc:Get_Development_Items_Request bsvc:version="v43.0">
            <bsvc:Request_References>
                <bsvc:Development_Item_Reference>
                    <bsvc:ID bsvc:type="Goal_Reference_ID">GOAL-2-O-51312</bsvc:ID>
                </bsvc:Development_Item_Reference>
            </bsvc:Request_References>
            <bsvc:Response_Group>
                <bsvc:Include_Reference>1</bsvc:Include_Reference>
            </bsvc:Response_Group>
        </bsvc:Get_Development_Items_Request>
    </soapenv:Body>