Flexfields for Purchase Agreements REST Endpoints

Purchase Orders/Flexfields for Purchase Agreements
The operations from the Purchase Orders/Flexfields for Purchase Agreements category.
Get all descriptive flexfields
Method: get
Path: /fscmRestApi/resources/11.13.18.05/purchaseOrders/{purchaseOrdersUniqID}/child/DFF
Get one descriptive flexfield not supported
Method: get
Path: /fscmRestApi/resources/11.13.18.05/purchaseOrders/{purchaseOrdersUniqID}/child/DFF/{PoHeaderId}