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Example: route alerts to Slack

This example shows how to route alert notifications to a Slack workspace using Notification Center.
The workflow uses a connector, a preset, and a router to send alerts to specific Slack channels based on alert priority.

Workflow overview

1. Create a Slack connector: defines where notifications are sent
2. Create a preset: defines how messages appear in Slack
3. Create a router and routing rules: defines which alerts go to Slack
4. Label alerts: ensures alerts match the correct router

Create a Slack connector

1. Go to Integrations, then Notification Center, then Connectors.

2. Select + New connector.

3. Select Slack as the destination type.

4. In Details, enter a connector name and optional description.

5. In Configuration:

   • Integration: Select the Slack integration. Create one if none exists.
   • Channel: Enter a default Slack channel (for example, #infra-alerts).

6. (Optional) Select Advanced, then Dynamic fields, define a dynamic channel.

   Example:

   {% if alert.highestPriority == "P1" %}
   critical-alerts
   {% else %}
   general-alerts
   {% endif %}

7. Select Send test notification to confirm delivery.

8. Select Create connector.

Create a preset (optional)

If you do not need message customization, use the system preset and skip this section.

To create a custom preset:

1. Go to Integrations, then Notification Center, then Presets.

2. Open the Alerts tab and select Slack.

3. Select + New alert preset.

4. Customize message fields:

   Field	Example
   Title	[{{ alert.highestPriority }}] {{ alertDef.name }}
   Description	{{ alertDef.description }}
   Footer	Triggered at {{ alert.timestamp }}

5. Use the Preview panel to review output.

6. (Optional) Use Send test notification to validate with your Slack connector.

7. Select Create preset.

To control the Slack layout instead of the Title, Description, and Footer fields, open the Advanced tab in Message and supply a Block Kit payload. See Slack message configuration for ready-to-use templates.

Create a router and routing rule

1. Go to Integrations, then Notification Center, then Routers.

2. Select + New router.

3. In Details, enter a name such as Production Alerts.

4. In Routing labels, add labels that this router matches:

   group:sre
   environment:prod

5. Matching alerts appear in the Matching entities panel.

6. After creating the router, add a routing rule:

   • Condition

     alert.highestPriority == "P1"

   • Destination

     • Connector: Slack – Prod
     • Preset: Slack Critical Alerts

7. (Optional) In Fallback, select a connector for unmatched alerts.

8. Select Create router.

Add labels to alerts

1. Go to Alerts, then Create alert.

2. In Labels, add routing labels that match your router:

   routing.team:sre
   routing.environment:prod

3. In Notifications, select Notification Center.

4. Save the alert.

Example result

A triggered alert produces a Slack message similar to:

Title:
[P1] CPU Usage High – Production

Body:
CPU usage for host server-1 exceeded 95%.

Footer:
Triggered at 2025-11-11 10:04 UTC

Next steps

Route critical alerts to PagerDuty using connectors, presets, and routing rules in Route p1 alerts to PagerDuty.