---
title: Stack notifications disabled
description: Datadog, the leading service for cloud-scale monitoring.
breadcrumbs: >-
  Docs > Datadog Security > Code Security > Infrastructure as Code (IaC)
  Security > IaC Security Rules > Stack notifications disabled
---

# Stack notifications disabled

{% callout %}
# Important note for users on the following Datadog sites: app.ddog-gov.com

{% alert level="danger" %}
This product is not supported for your selected [Datadog site](https://docs.datadoghq.com/getting_started/site). ().
{% /alert %}

{% /callout %}

## Metadata{% #metadata %}

**Id:** `b72d0026-f649-4c91-a9ea-15d8f681ac09`

**Cloud Provider:** AWS

**Platform:** Terraform

**Severity:** Medium

**Category:** Observability

#### Learn More{% #learn-more %}

- [Provider Reference](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/cloudformation_stack)

### Description{% #description %}

Enabling stack notifications in AWS CloudFormation ensures that administrators are promptly informed about critical events such as stack creation, updates, or failures. Without specifying the `notification_arns` attribute in the Terraform resource, as shown below, important operational or security changes may go unnoticed, potentially delaying response to incidents or failures:

```
resource "aws_cloudformation_stack" "example" {
  name = "networking-stack"
  parameters = {
    VPCCidr = "10.0.0.0/16"
  }
  notification_arns = ["arn:aws:sns:us-east-1:123456789012:my-sns-topic"]
}
```

Missing notifications can lead to undetected application outages or misconfigurations, increasing the risk to your cloud infrastructure.

## Compliant Code Examples{% #compliant-code-examples %}

```terraform
resource "aws_cloudformation_stack" "negative1" {

  name = "networking-stack"

  parameters = {
    VPCCidr = "10.0.0.0/16"
  }


  notification_arns = ["a","b"]

}
```

## Non-Compliant Code Examples{% #non-compliant-code-examples %}

```terraform
resource "aws_cloudformation_stack" "positive1" {

  name = "networking-stack"

  parameters = {
    VPCCidr = "10.0.0.0/16"
  }


}
```