It's not too hard a situation to imagine...

You're logged in to a website, and you walk away from the PC. Someone comes along and starts using the same website. If they submit a form, then it shouldn't update your CRM record. It should show them that you're still logged in. They will then log out and create a new CRM record.

This problem was initially reported here ->

After much discussion here's measures we've taken to make this easier to implement for you.

1 - How to show that someone is logged in

Our default form layout for new or updated forms will set both 'email' and 'name' as readonly, pre-populated fields if there's a logged in user.

You can also add your own message on page like this:

{%- if == true -%}
    <p>Hi {{ }}! <a href="/logout">(not you?)</a></p>
{%- endif -%}

2 - How to allow updating of existing user data - Essentially a 'user update' form

If you look at the email and name fields in your new default layout, you'll see this:
 {% if -%}readonly value="{{ }}"{% endif %}

Either remove 'readonly' to allow editing, or remove the entire IF statement if you also don't want it pre-populated.

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