get https://virtserver.swaggerhub.com/purchases/v1/customer//cart/
Looks up the details of a cart from its ID.
Response Code | Fault Code | Fault | Suggested User Message
------------- | ---------- | ----- | ----------------------
404 | 90040 | NoCartFoundFault | Cart does not exist
500 | 90061 | SystemFailureFault | System Failure, please try again later