AWS AWS Auto Scaling Error Codes

The request failed because an active instance refresh or rollback for the specified Auto Scaling group was not found.

You already have an Auto Scaling group or launch configuration with this name.

Indicates that the parameters in the current request do not match the parameters from a previous request with the same client token within the idempotency window.

The request failed because an active instance refresh already exists for the specified Auto Scaling group.

The NextToken value is not valid.

The request failed because a desired configuration was not found or an incompatible launch template (uses a Systems Manager parameter instead of an AMI ID) or launch template version ($Latest or $Default) is present on the Auto Scaling group.

You have already reached a limit for your Amazon EC2 Auto Scaling resources (for example, Auto Scaling groups, launch configurations, or lifecycle hooks). For more information, see DescribeAccountLimits in the Amazon EC2 Auto Scaling API Reference.

You already have a pending update to an Amazon EC2 Auto Scaling resource (for example, an Auto Scaling group, instance, or load balancer).

The operation can't be performed because the resource is in use.

The operation can't be performed because there are scaling activities in progress.

The service-linked role is not yet ready for use.