webhook

slack

Connect Webhooks and Slack

External Alerting

Turn any external system into a Slack notification source. Receive webhooks from custom apps and third-party tools and route them to the right channels instantly.

No code required

4 ready-made templates

Set up in 5 minutes

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What you can automate

Every tool your team uses should be able to alert Slack. Flomation creates a webhook endpoint that any external service can POST to — turning the payload into a formatted Slack message and routing it to the right channel automatically.

Post Slack messages from webhook events, DM team members from custom events, create Slack channels for new projects, and upload webhook data as files.

Upload webhook payload data as Slack file

Share the webhook data as a file attachment in a Slack channel for review.

Create Slack channel from webhook new project event

Auto-spin up a new Slack channel when a webhook signals a new project start.

DM team member from webhook custom event

Send a Slack DM to a specific person when a custom webhook event is triggered.

Post Slack message when webhook is received

Automatically send a Slack channel notification when any webhook payload arrives.

Steps

Try for yourself

How it works

Set up your first automation in under 5 minutes.

1

Get your Flomation webhook URL from the trigger configuration

2

Configure the external tool to send events to that URL

3

Set up Slack channel routing and message formatting

4

Activate and receive alerts from any external tool

FAQ

Can I test my webhook-to-Slack workflow without using a real external system?

Yes. Use curl, Postman, or Flomation's built-in test feature to send a sample payload and verify the Slack message formatting.

Can a single webhook URL route to multiple Slack channels?

Yes. Add multiple Send Channel Message actions in the same workflow, or create branching conditions to route to different channels based on payload fields.

Can I format the Slack message differently based on the webhook event type?

Yes. Add conditions based on the event type field in the webhook payload to apply different message templates for different event types.

Set up your connection today!

Flomation makes it simple to build powerful automations — no code, no engineers, no waiting.

If it has an API, it has a home in Flomation.

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