When one wants to change their email address it is more involved than just a name change because this is generally how people login.
So the initial screen to change the email is the same:
Email Change UI
But once they've done this the citizen will need to confirm the change by clicking a verification email in the email account that they have changed the service to. Until they do the following message is presented:
Message to highlight confirmation is needed to complete the change
If a person attempts to change their email address to one already in use they will face an error message telling them they cannot do this.
This is customisable help / guidance, which is changed by the setting:
Optional notice displayed on Profile Email change, for example, when a change of address form is also required
