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Warrn has two CloudWatch integrations:

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CloudWatch (Contextual)

PropertyValue
TypeContextual
LevelService
Connects to CloudWatch via AWS credentials to pull alarms and metrics. Used by Warrnagen during investigations to check metric state.
1

Add to a service

Open a service or team in Warrn. Go to the Integrations tab and add AWS CloudWatch**.
2

Enter AWS credentials

Provide an AWS Access Key ID, Secret Access Key, and optionally an IAM Role ARN. Select your AWS region.

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CloudWatch SNS (Incoming)

PropertyValue
TypeIncoming
LevelService
Auto-resolveYes
Receives CloudWatch alarm notifications via SNS. When an alarm enters ALARM state, Warrn creates an alert. When it returns to OK or INSUFFICIENT_DATA, Warrn auto-resolves the matching alert.
1

Add the integration in Warrn

Open a service or team in Warrn. Go to the Integrations tab and add CloudWatch SNS**. Copy the generated webhook URL.
2

Create an SNS subscription

In AWS, create an SNS topic (or use an existing one). Add an HTTPS subscription pointing to the Warrn webhook URL.
3

Configure CloudWatch alarms

Set your CloudWatch alarms to send notifications to the SNS topic for both ALARM and OK actions. This enables auto-resolve.
Configure alarms for both ALARM and OK actions. Without the OK action, Warrn can create alerts but not auto-resolve them.