Lambda function has no CloudWatch alarm on Errors metric

What it checks

Lambda: no declared CloudWatch alarm on AWS/Lambda Errors is proven to monitor this function's FunctionName.

Where it applies

Terraform: aws_lambda_function

CloudFormation: AWS::Lambda::Function

How to fix it

1. Add an aws_cloudwatch_metric_alarm: namespace=AWS/Lambda, metric_name=Errors, dimensions={FunctionName=<this>}, threshold=1, evaluation_periods=2, statistic=Sum, alarm_actions=[<sns topic that pages>].

Frameworks

• AWS Well-Architected OPS.8
• AWS Well-Architected REL.6

These mappings are advisory, not an attestation of compliance.

Vendor documentation

All rules