Flexfields for Shipping Costs REST Endpoints

Inventory Management/Shipment Lines/Costs for Shipment Lines/Flexfields for Shipping Costs
The Flexfields for Shipping Costs resource manages details about shipping costs.
Get all flexfields
Method: get
Path: /fscmRestApi/resources/11.13.18.05/shipmentLines/{ShipmentLine}/child/costs/{FreightCostId}/child/DFF
Get one flexfield
Method: get
Path: /fscmRestApi/resources/11.13.18.05/shipmentLines/{ShipmentLine}/child/costs/{FreightCostId}/child/DFF/{FreightCostId2}