Auto Scaling
API Reference (API Version 2011-01-01)


Creates or updates tags for the specified Auto Scaling group.

When you specify a tag with a key that already exists, the operation overwrites the previous tag definition, and you do not get an error message.

For more information, see Tagging Auto Scaling Groups and Instances in the Auto Scaling User Guide.

Request Parameters

For information about the parameters that are common to all actions, see Common Parameters.


One or more tags.

Type: array of Tag objects

Required: Yes


For information about the errors that are common to all actions, see Common Errors.


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

HTTP Status Code: 400


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

HTTP Status Code: 400


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

HTTP Status Code: 500


Sample Request