Fetch Sales Order related to BPM Tasks from REST API

Summary:

Hello,

I'm developing an app to fetch and display BPM tasks related to Sales Order Approval in Oracle Fusion Cloud. I've successfully retrieved the tasks using the /bpm/api/4.0/tasks API, but I am unable to find a way to associate these tasks with the corresponding Sales Orders.

Here is the response I’m working with from the /bpm/api/4.0/tasks API:

{

    "count": 3,
    "items": [
        {
            "title": "Approval Request for Order 23900",
            "identificationKey": "DOO3000001161993881",
            "taskId": "c342f328-7317-46ad-a55c-81ecc8436a2a",
            ...
        },
        {
            "title": "Approval Request for Order 23901",
            "identificationKey": "DOO3000001163024861",
            "taskId": "856760a5-5bab-4679-a2b7-bb36ec6fa7b9",
            ...
        }
    ]
}

From the above, the