I need to use the LN REST API to retrieve a list of Active Production Orders. The /odata/tiapi.sfcProductionOrder/Orders API has the $filter function. OrderStatus is a property in that API. However, $filter wants a string value and LN stores OrderStatus as an enumerated value :

I have tried using the following:
OrderStatus eq 'Active'
OrderStatus eq 70
With no success. API Gateway returns this:
{ "error": { "code": null, "message": "The types 'tiapi.sfcProductionOrder.OrderStatus' and 'Edm.String' are not compatible." } }
How do I set up API Gateway or Postman to accept my $filter function so I can retrieve only Active Production Orders?
Thank you in advance for any help provided.
Jaime