247Monitor

Send alerts to Slack

Get downtime and recovery notifications in a Slack channel. You'll create an incoming webhook in Slack, then paste it into a 247Monitor alert channel.

3 min read

247Monitor sends Slack alerts through an incoming webhook — a private URL Slack gives you that posts messages to one channel. Create it once, paste it in, done.

Create the webhook in Slack

  1. 1

    Open Slack's app builder

    Go to api.slack.com/apps and click Create New App → From scratch. Give it a name like “247Monitor” and pick the workspace you want alerts in.

  2. 2

    Turn on Incoming Webhooks

    In the app's settings, open Incoming Webhooks and toggle Activate Incoming Webhooks on.

  3. 3

    Add a webhook to a channel

    Click Add New Webhook to Workspace, choose the channel alerts should post to (e.g. #alerts), and authorise it. Slack generates a URL that looks like https://hooks.slack.com/services/T…/B…/….

  4. 4

    Copy the webhook URL

    Copy that URL — it's the only thing 247Monitor needs.

    Heads upTreat the webhook URL like a password. Anyone with it can post to your channel, so don't commit it to a repo or share it publicly.

Connect it in 247Monitor

  1. 5

    Add a Slack alert channel

    In the dashboard, open Alert Channels and click Add Channel, then choose Slack.

    app.247monitor.net
    The Add Alert Channel dialog with channel types including Slack
    Alert Channels → Add Channel → Slack.
  2. 6

    Paste the webhook URL

    Give the channel a recognisable name and paste the webhook URL into the Webhook URL field. Leave Enable Channel on.

    app.247monitor.net
    The Slack alert channel form with a name and webhook URL
    Paste the hooks.slack.com URL and save.
  3. 7

    Send a test and save

    Use Send test to confirm a message lands in your Slack channel, then save. Finally, attach the channel to the monitors that should use it — either on each monitor or when you create one.

NoteOne webhook posts to exactly one channel. To alert several Slack channels, create a webhook (and a 247Monitor alert channel) for each.

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