Promotion Codes REST Endpoints

Order Management/Sales Orders for Order Hub/Promotion Codes
Code is the mandatory qualifier for applying a promotion linked to the promo code. The user must enter a predefined promo code on the sales order to qualify for the specific promotion.
Create one promotion code
Method: post
Path: /fscmRestApi/resources/11.13.18.05/salesOrdersForOrderHub/{OrderKey}/child/promotionCodes
Get all promotion codes
Method: get
Path: /fscmRestApi/resources/11.13.18.05/salesOrdersForOrderHub/{OrderKey}/child/promotionCodes
Get one promotion code
Method: get
Path: /fscmRestApi/resources/11.13.18.05/salesOrdersForOrderHub/{OrderKey}/child/promotionCodes/{PromocodeId}
Patch action not supported
Method: patch
Path: /fscmRestApi/resources/11.13.18.05/salesOrdersForOrderHub/{OrderKey}/child/promotionCodes/{PromocodeId}