Tutorial "Storing and Forwarding Messages" output incorrect

[lianescafarate]

Description:
When following the steps of the exercise Storing and Forwarding Messages, the output is:

To: http://www.w3.org/2005/08/addressing/anonymous, WSAction: , SOAPAction: , MessageID: urn:uuid:a724fc80-14b9-46dd-884a-679ad9edf3e3, Direction: request, Payload: {"patient":"John Doe","actualFee":7000.0,"discount":20,"discounted":5600.0,"paymentID":"742f6b5e-05c9-477c-8a20-bf4b615fd836","status":"Settled"}

When it should be:
To: http://www.w3.org/2005/08/addressing/anonymous, WSAction: , SOAPAction: , MessageID: urn:uuid:a2cf1fd2-7a89-44b6-9571-990bbdfbd289, Direction: request, Payload: {"appointmentNo":1,"doctorName":"thomas collins","patient":"John Doe","actualFee":7000.0,"discount":20,"discounted":5600.0,"paymentID":"a77038e9-3e42-46f7-ac97-11e1b3a50018","status":"Settled"}

Affected Product Version:
Enterprise Integrator V6.6.0

OS, DB, other environment details and versions:
macOS Monterey version 12.3.1
WSO2 EI 6.6.0
Java 11.0.13
WSO@ Integration Studio 8.0.1

Steps to reproduce:
Follow tutorial instructions.

Related Issues:
#5555