get https://virtserver.swaggerhub.com/singuladecisions/contracts/1.0.19/customer//contract//change
Get details of available subscriptions a customer's current contract can be crossgraded to.
Includes an estimated cost to change. i.e. the amount the customer would be immediately charged.
Response Code | Fault Code | Fault | Suggested User Message
------------- | ---------- | ----- | ----------------------
400 | 90029 | InvalidStateForCrossgradeFault | Contract cannot be crossgraded
404 | 90041 | NoContractFoundFault | Contract ID does not exist
500 | 90061 | SystemFailureFault | System Failure, Please try again later