<p> <b>We strongly recommend using a launch template when calling this operation to ensure full functionality for Amazon EC2 Auto Scaling and Amazon EC2.</b> </p> <p>Creates an Auto Scaling group with the specified name and attributes. </p> <p>If you exceed your maximum limit of Auto Scaling groups, the call fails. To query this limit, call the <a>DescribeAccountLimits</a> API. For information about updating this limit, see <a href="https://docs.aws.amazon.com/autoscaling/ec2/userguide/ec2-auto-scaling-quotas.html">Quotas for Amazon EC2 Auto Scaling</a> in the <i>Amazon EC2 Auto Scaling User Guide</i>.</p> <p>For introductory exercises for creating an Auto Scaling group, see <a href="https://docs.aws.amazon.com/autoscaling/ec2/userguide/GettingStartedTutorial.html">Getting started with Amazon EC2 Auto Scaling</a> and <a href="https://docs.aws.amazon.com/autoscaling/ec2/userguide/as-register-lbs-with-asg.html">Tutorial: Set up a scaled and load-balanced application</a> in the <i>Amazon EC2 Auto Scaling User Guide</i>. For more information, see <a href="https://docs.aws.amazon.com/autoscaling/ec2/userguide/AutoScalingGroup.html">Auto Scaling groups</a> in the <i>Amazon EC2 Auto Scaling User Guide</i>.</p> <p>Every Auto Scaling group has three size properties (<code>DesiredCapacity</code>, <code>MaxSize</code>, and <code>MinSize</code>). Usually, you set these sizes based on a specific number of instances. However, if you configure a mixed instances policy that defines weights for the instance types, you must specify these sizes with the same units that you use for weighting instances.</p>

{
  "success": true,
  "data": {
    "id": "abc123",
    "created_at": "2025-01-01T00:00:00Z"
  }
}

{
  "success": false,
  "error": {
    "code": "VALIDATION_ERROR",
    "message": "Invalid request parameters"
  }
}