Enable/Edit message sent for successful journey with noSession parameter

Setup
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1

As per this documentation, when we authenticate against a journey using the noSession parameter, we get the response as below:

{
    "message":"Authentication Successful",
    "successUrl":"/openam/console",
    "realm":"/"
}

However, when I tried it out, I do not get message in the response.

{
    "successUrl": "/auth/console",
    "realm": "/test"
}

Are there any settings or shared state keys to enable/modify message property in the response?

2

Have you tried to set errorMessage in shared state at the end of the journey?

3

Missed to mention that in the description. I did try editing the errorMessage in shared state. But that didn’t work. It’s only picked up for failure scenario.

Tried message as well, but didn’t help.