get https://virtserver.swaggerhub.com/catalogue/v1/item//discounts
Look up details of a discounts for given sales item
Response Code | Fault Code | Fault | Suggested User Message
------------- | ---------- | ----- | ----------------------
500 | 90061 | SystemFailureFault | System Failure, please try again later
500 | 4931 | BadInputException | sales item code is empty
500 | 7000 | CatalogueNotFoundException | No Category Item found