Flexfields for Discount List Header REST Endpoints

Order Management/Discount Lists/Flexfields for Discount List Header
The Flexfields for Discount List Header resource associates descriptive flexfield segments and its values to a discount list.
Create header flexfields
Method: post
Path: /fscmRestApi/resources/11.13.18.05/discountLists/{DiscountListId}/child/headerDFF
Get all header flexfields
Method: get
Path: /fscmRestApi/resources/11.13.18.05/discountLists/{DiscountListId}/child/headerDFF
Get one header flexfield
Method: get
Path: /fscmRestApi/resources/11.13.18.05/discountLists/{DiscountListId}/child/headerDFF/{DiscountListId2}
Update one header flexfield
Method: patch
Path: /fscmRestApi/resources/11.13.18.05/discountLists/{DiscountListId}/child/headerDFF/{DiscountListId2}