When retrieving a list of orders, it's important to specify the status.
The documentation is a little unclear as the status param isn't listed in the body of the documentation, but it is shown on the endpoint 'callout'
If you expand the 'hidden' portion of the param documentation you can see the status column along with the potential values:
- open: Show only open orders.
- closed: Show only closed orders.
- cancelled: Show only canceled orders.
- any: Show orders of any status, including archived orders.