post https://virtserver.swaggerhub.com/singuladecisions/contracts/1.0.19/customer//contract//change/cost
Calculate the cost of changing a customers contract to the supplied contract code.
Response Code | Fault Code | Fault | Suggested User Message
------------- | ---------- | ----- | ----------------------
400 | 90029 | InvalidStateForCrossgradeFault | Contract cannot be crossgraded
404 | 90041 | NoContractFoundFault | Contract ID does not exist
400 | 90018 | InvalidCrossgradePathFault | Contract cannot be crossgraded to this item
500 | 90061 | SystemFailureFault | System Failure, Please try again later
404 | 90022 | InvalidDiscountCodeFault | Discount does not exist