Flexfields for Price List Items REST Endpoints

Order Management/Price Lists/Price List Items/Flexfields for Price List Items
The Flexfields for Price List Items resource associates descriptive flexfield segments and its values with a price list item.
Create item flexfields
Method: post
Path: /fscmRestApi/resources/11.13.18.05/priceLists/{PriceListId}/child/items/{PriceListItemId}/child/itemsDFF
Get all item flexfields
Method: get
Path: /fscmRestApi/resources/11.13.18.05/priceLists/{PriceListId}/child/items/{PriceListItemId}/child/itemsDFF
Get one item flexfield
Method: get
Path: /fscmRestApi/resources/11.13.18.05/priceLists/{PriceListId}/child/items/{PriceListItemId}/child/itemsDFF/{PriceListItemId2}
Update one item flexfield
Method: patch
Path: /fscmRestApi/resources/11.13.18.05/priceLists/{PriceListId}/child/items/{PriceListItemId}/child/itemsDFF/{PriceListItemId2}