Can I mention in costom_payload?

[aj172019]

I want to mention in costom_payload, So I put @ before reviewer and inserted it in comtom_payload.
like this

env:
  REVIEWERS: ${{ format('<@{0}>', join(github.event.pull_request.requested_reviewers.*.login, '>, <@')) }}

with:
  custom_payload: |
            {
              attachments: [{
                 ...
                },
                {
                  title: '✅ Reviewers',
                  value: '- ${{ env.REVIEWERS }} \n',
                  short: false
                },
                {
                  ...
                }]
              }]
            }

but @ is not working.

How can I mention in custom_payload?

[sgoodman-r7]

@ahnjoonheon I am able to mention single users in custom payload.
I use the slack user_id in this format: <@u12345>
are you sure that env.REVIEWERS is in the format you expect?

[gdonati78]

To mention a Slack group you need to use the following format:
<!subteam^SUBTEAM-ID|SUBTEAM_NAME>

You can find the subteam ID through a Slack admin in your organization