How To Find A Campaign Custom Field Type and Id Value for API Use

Hello,

I am trying to find a repeatable way to find the internal type and id of a Campaign > Custom Field set in the Eloqua UI.

For my testing, I added a new Campaign Custom Field via the Eloqua UI by going to Gear > Fields & Views > Campaign Fields > PlusIcon = Display Name = "Department or Team", Data type = "Text", Field type = "Textbox", required = checked.

Now I need to find the internal references so I can make a Create Campaign REST api call with the fieldValues param, so this required field is set. e.g.

"fieldValues": [{"type":"HOWTOFIND?","id":"HOWTOFIND?","value":"myvalue"}]

I am struggling to locate the internal details necessary to construct this call.