How to alert a custom group in slack using incoming webhook

Question

I was trying to alert a custom group using incoming webhook in slack.I can able to alert user using <@user>, but with group any of the following format is not working

<!cgroup>
<@cgroup>

What i am missing here. Thanks in advance.

Answer 1

I got this working by adding a link_names attribute to my JSON payload. For example, POSTing this to my Slack hook URL:

{
    "text": "@myusergroup Hello",
    "link_names": 1
}

Caused users in @myusergroup to be notified by the message.