In-Slack actions
In-Slack actions help your team triage, assign, resolve, and investigate support threads without leaving Slack. You can take action instantly, create visibility on ownership and status, and now get AI assistance — all from inside the conversation.
Use Slack actions to manage threads
The following actions can be performed directly from a notification in your Slack channel:
Reply in Slack
Opens the original customer Slack thread so you can jump in instantly.I’ll take this
Assigns the thread to you in Plain – clear ownership, no confusion.Status dropdown
Lets you update the thread status directly from Slack. All your custom statuses (e.g. Investigating, Waiting on customer) are available in one click.Snooze until tomorrow
Snooze a support request so that you have a reminder to look at it later.Set priority to urgent
Automatically change a thread's priority to signal to your team that it needs immediate attention.Open in Plain
Navigate to the support request in Plain, directly from the Slack notification.
Update thread status with emojis
You can also take action directly in the customer's Slack thread, using emojis on the top-level message.
✅ → Marks the thread as Done in Plain
👀 → Marks the thread as Investigating
Plain syncs these emoji reactions with thread status in real-time – but only when the setting is toggled 'On' from Settings -> Notifications.
If the thread isn’t already assigned and you react with ✅ or 👀, Plain will auto-assign it to you – as long as your role in Plain isn’t Viewer.
Ask Sidekick from Slack
You can invoke Sidekick — Plain's AI assistant — directly in a connected Slack channel by @mentioning it. Sidekick responds in the thread with full access to your knowledge sources, tool integrations (Linear, Datadog, GitHub, and more), and support history.
This means you can investigate, draft replies, and pull context from your connected tools without ever leaving Slack.
Sidekick in Slack is enabled by a workspace Admin or Owner in Settings → AI → Sidekick → Integrations → Slack.