Changing a user's email address has to be done through the main user dashboard or by the admin in the workspace.
Making the change in the main user dashboard will change it globally across all workspaces under the particular customer account, whereas changing the email in a workspace will only apply to that specific workspace.
Changing a user's email immediately logs the user out from all workspaces that the change impacts and disables all previous login links. This occurs due to security reasons to prevent the owner of the old email from accessing the workspace.
In a workspace, an admin user cannot change their own email. However, they have the ability to change any other user's email address.
To change a users email in the workspace, the admin must open the user's profile from the user management:
With the profile modal open, select 'Edit profile':
Change the Email address and hit 'Save'.
Once the change is saved the user management view will display the new email address of the user.