There are no transformations.

I create a new message and call an Operation using ProcessAsync in the Business Service. This message has a property for the File Name which I want to populate. with the name of the original file picked up by the business service.

Thank you.

I think this will help. It will still fail when I do a ValidateObject on the created objects, right? So then I can get the errors that way.

Thank you. This is very informative.

Thank you Tony.

This would mean that the password change service will have to be on a CSP application configuration which is unauthenticated by the underlying Cache web-service handler.

Another option may be to let the password never expire and perform peer certificate verification by issuing a certificate to the client and verifying it during the SSL/TLS handshake.
Is this possible in Cache on the CSP gateway in some way, on a User level or even on a CSP application configuration?

No question. I've changed the type to article now.