Answer
Most BizAPIs have a direct Cloud Projection action equivalent — ReceiveCustomerSchedule, for example, maps to the CustomerScheduleMessageService.svc/ReceiveCustomerSchedule projection action. Compare the old BizAPI's WSDL/payload structure against the new projection action's API documentation to check for any payload differences, and if the structure is unchanged (or close), IFS's standard transformers can convert the existing XML payload to the JSON the projection action expects, so you can often reuse most of the existing integration logic rather than rebuilding the payload handling from scratch.