Pre Populated Userdata
Place this shortcode in any fields like single-line text, multi-line text, Email, Number, etc.. which will be replaced by the value of entered user meta key of currently logged in user in front-end, if the user is not logged in or meta key is not available then it will be replaced with blank.
USER_META_KEY – Enter user meta key here like user_login, user_email.
will return user's email address like,
Note: This will work for logged in users only. Otherwise, values will be replaced with blank.