Per-pair page

Connect Customer.io to Slack in two minutes.

Real-time triggers from Customer.io, ready-made actions in Slack. Filter, transform, and route without writing a line of code.

Connect Customer.io to Slack — start free See reverse direction

Trigger app

Customer.io as the trigger

Workflows fire when something happens in Customer.io.

Action app

Slack as the action

Workflows do something in Slack, instantly.

See all 45 actions →

Connect Customer.io to Slack — start free

Both directions

Pick the way that fits your stack.

Pair pages are mirrored. Each direction gets its own dedicated page.

Customer.io → Slack

When something happens in Customer.io, do it in Slack.

4 Customer.io triggers wired to 45 Slack actions. Most-used pairing: Customer Subscribed → Raw API Request.

Slack → Customer.io

Or fire it the other way around.

13 Slack triggers wired to 4 Customer.io actions downstream.

See Slack → Customer.io →

Popular pairings

Common Customer.io → Slack workflows.

Pick a pairing to set it up in two minutes. Each one is a fully editable recipe.

Showing 9 of 180 combinations

When customer subscribed in Customer.io, raw api request in Slack.

Fires when a customer subscribes to a Customer.io segment or list. The base hook for "they joined → start the welcome journey" or "qualified → add to BDR's outreach queue" cross-app workflows.

When customer subscribed in Customer.io, add reaction in Slack.

Fires when a customer subscribes to a Customer.io segment or list. The base hook for "they joined → start the welcome journey" or "qualified → add to BDR's outreach queue" cross-app workflows.

When customer subscribed in Customer.io, archive channel in Slack.

Fires when a customer subscribes to a Customer.io segment or list. The base hook for "they joined → start the welcome journey" or "qualified → add to BDR's outreach queue" cross-app workflows.

When customer subscribed in Customer.io, cancel scheduled message in Slack.

Fires when a customer subscribes to a Customer.io segment or list. The base hook for "they joined → start the welcome journey" or "qualified → add to BDR's outreach queue" cross-app workflows.

When email delivered in Customer.io, raw api request in Slack.

Fires when the recipient mail server accepts the message. Useful for verifying "did the transactional email actually deliver?" workflows.

When email delivered in Customer.io, add reaction in Slack.

Fires when the recipient mail server accepts the message. Useful for verifying "did the transactional email actually deliver?" workflows.

When email delivered in Customer.io, archive channel in Slack.

Fires when the recipient mail server accepts the message. Useful for verifying "did the transactional email actually deliver?" workflows.

When email delivered in Customer.io, cancel scheduled message in Slack.

Fires when the recipient mail server accepts the message. Useful for verifying "did the transactional email actually deliver?" workflows.

When email link clicked in Customer.io, raw api request in Slack.

Fires when a recipient clicks a tracked link in a Customer.io email. Payload includes the link URL and recipient. High-signal behavioural hook — branch on URL to route engagement to the right downstream automation.

How it works

Connect Customer.io and Slack in five steps.

No code, no glue, no half-day setup. Each step is one click.

1
Connect
Authorize Customer.io and Slack
Open TinyCommand, authorize Customer.io and Slack once each. Both connections are available to every workflow on your account.
2
Trigger
Pick a Customer.io trigger
Drop the Customer.io → Customer Subscribed trigger onto the canvas. TinyCommand auto-registers the webhook.
POST /v1/webhooks/customerio.trigger-customer-subscribed
3
Transform
Add a filter or AI step
Optionally add a Filter node ("subject contains URGENT") or an AI step ("classify intent") between trigger and action.
4
Action
Add the Slack action
Drop the Slack → Raw API Request action below it. Map fields from the Customer.io payload into the Slack inputs.
slack.api-request
5
Publish
Publish and forget
Hit Publish. TinyCommand runs it in production from second one. Watch the run-log fill up.

FAQ

Questions about Customer.io + Slack.

How long does it take to connect Customer.io and Slack on TinyCommand?

Under two minutes. Authorize Customer.io and Slack once each, drop the Customer.io trigger and Slack action onto a workflow canvas, map a couple of fields, and publish. No code, no glue.

Is the Customer.io ↔ Slack integration real-time?

Yes. Both Customer.io and Slack expose webhooks, so events from one fire workflows in the other within seconds rather than on a polling interval.

Can I filter or transform data between Customer.io and Slack?

Yes. Add a Filter node to only pass through matching events, a Switch node to branch by value, or an AI / Code node to transform payloads before they hit Slack.

What Customer.io events can trigger a Slack workflow?

Any of the 4 Customer.io triggers, including "Customer Subscribed". Each fires in real time when the matching event happens in Customer.io.

Do I need a paid plan to use Customer.io with Slack?

No. Both integrations come on every plan, including Free, which includes 1,000 credits a month with no credit card. Each workflow step uses 1 credit, and paid plans include more credits and team seats when you need them.

What if I want Slack → Customer.io instead?

Build it the same way, in reverse. There's a dedicated /integrations/slack/with/customerio page with the reverse-direction triggers and actions.

Other apps that pair well with Customer.io.

Customer.io + Gmail

Customer.io + Google Sheets

Spreadsheets & Databases

Customer.io + HubSpot

Customer.io + Airtable

Spreadsheets & Databases

Connect Customer.io to Slack — start free