title: What does "group_close" mean in Slack's Event Webhooks?
body: <p>When using the Events Webhook API, there is an event called <code>group_close</code> (also has <code>im_close</code> for im conversations). What does this mean? ie: what does it take on the Slack client to get this event to trigger? Slack's documentation on this is pretty minimal:</p>
  <p><code>The group_close event is sent to all connections for a user when a private channel is closed by that user.</code></p>
  <p>source: <a href="https://api.slack.com/events/group_close" rel="nofollow noreferrer">https://api.slack.com/events/group_close</a></p>
  <p>I tried <code>/close</code> command and it just archives the group/im conversation. Is this an outdated event that is no longer relevant? I know it still gets called, but as far as I can tell, it's identical to archive.</p>