How to Connect Intercom to Slack: Native Setup and Alerts

Two different jobs hiding behind one question

When someone asks how to link their helpdesk to Slack, they usually mean one of two things. Either their customers or partners talk to them in shared Slack channels and they want those messages handled like any other support conversation, or their own team lives in Slack and wants a ping when a new ticket or conversation lands. Intercom handles both natively, but you set them up differently, and a single channel can't do both.

Getting that choice right first saves you rebuilding the setup later. Here's how the routes compare.

Which route fits you

Route	What it does	Pick it when
Native, Conversational channel	Slack messages become Inbox conversations; replies post back in the same thread	Customers or partners message you in Slack
Native, notification channel plus Workflow	One-way alerts via the Notify Slack action	Your team wants updates on tickets and conversations
Zapier template	Sends new conversations as Slack channel messages	You only need a simple alert and already use Zapier
Channeled app	Routes Slack conversations into the Inbox, separate from the native integration	You prefer a third-party app over the native route

Connecting the native integration, in order

1. In Intercom, open Settings, then Channels, then Slack. This is where the native connection lives.
2. Authenticate your Slack workspace. If you use Slack Enterprise Grid, install the app in a secondary workspace, because the primary workspace isn't supported.
3. Click Add channels, search for the channel and save. You can also add Fin from the channel's Members and Integrations menu inside Slack. Only channels you add are connected.
4. Choose the channel purpose: Conversational for support, or Post Slack notifications only for alerts. A channel can't be both.
5. For conversational channels, open Manage workspace and set the conversation triggers: every message, or only a mention, an emoji reaction or a keyword.
6. For alerts, build a Workflow, add the Notify Slack step and pick your notification channel.

You can connect more than one Slack workspace to the helpdesk, which helps if you run shared channels with several clients who each have their own workspace.

How Slack messages turn into Inbox conversations

Once a channel is set to Conversational, a customer message in it becomes a conversation in the Intercom Inbox, with a Slack icon showing where it came from. Your team works it like any other conversation. Replies from Fin or from teammates are posted back to Slack in the same thread, showing the teammate's name and avatar, so the customer never has to leave Slack.

The trigger setting matters more than it looks. By default every message in a connected channel creates a conversation. In a busy shared channel, that can flood your Inbox with chat that isn't a support request. Switching to a mention, an emoji reaction or a keyword means only the messages someone flags turn into work.

Sending one-way alerts, including to private channels

For alerts, the Workflow's Notify Slack action does the work. Only channels whose purpose is set to Post Slack notifications only appear in the channel selector, so if the channel you want is missing, check its purpose first.

Private channels work too, with one extra step. Invite the Intercom app into the private channel and set its purpose to notifications only, and it'll show up as an option. Adding the app works much like adding someone to a Slack channel, from the channel's own settings.

Setup traps buried in the help centre small print

Three details catch people out, all from the Intercom Help Centre. First, a Slack channel can't be both a support channel and a notification channel, so plan separate channels for each job. Second, the older Intercom app for Slack is a deprecated legacy app that doesn't support Slack as an inbound support channel, so tutorials built around it are out of date. Third, Slack Enterprise Grid users must install in a secondary workspace, not the primary one.

One more from the same article: as of Nov 2026, Slack's free plan allows only 10 apps, so check you've got room to add Fin before you start.

When a connector makes more sense

Zapier lists an Intercom and Slack template that sends new Intercom conversations as Slack channel messages. If all you want is a heads-up when something new arrives, and you already run other automations there, it's a quick way in.

Channeled is another option. Intercom's help centre says it routes Slack conversations into the Inbox and is separate from the native Slack integration. If you're still deciding whether Intercom is the right helpdesk at all, my rundown of other helpdesk options to Intercom is worth a read first.

My advice before you connect anything

Decide what each Slack channel is for before you touch the settings. Give customer conversations their own Conversational channel with a mention or emoji trigger, and give your team a separate notification channel fed by a Workflow. Ignore any guide that tells you to install the old Intercom app for Slack. The native route in Settings, Channels, Slack is the one to use.

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Frequently asked questions

Where do I connect Slack in Intercom?

In Settings, Channels, Slack, then authenticate your Slack workspace.

Can customers message us in Slack and reply from Intercom?

Yes. Messages in connected channels create Inbox conversations, and replies post back to the same Slack thread.

How do I get Slack alerts for new tickets?

Set the channel to Post Slack notifications only and add a Notify Slack step to a Workflow.

Does it work with Slack Enterprise Grid?

Yes, but not in the primary workspace. Install it in secondary workspaces.

Is the old Intercom Slack app still the way to do it?

No. Intercom calls it deprecated and points to the native Slack integration.