projectFinancialTasks fetching 0 count

Hello, Im using the follow API to fetch the financial tasks from fusion cloud, there tasks that are already created yet when trying to get through postman its returning nothing. anyone knows if there is an issue with the api or am i missing something essential?

/fscmRestApi/resources/11.13.18.05/projectFinancialTasks

{

    "items": [],

    "count": 0,

    "hasMore": false,

    "limit": 25,

    "offset": 0,

    "links": [

        {

            "rel": "self",

           "href": etc

            "name": "projectFinancialTasks",

            "kind": "collection"

        }

    ]

}

this is what is being fetched.

Thank you