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Auto Scaling:DescribeScalingActivityDetail

Last Updated:Jul 22, 2025

Queries the details of a scaling activity. You can query a scaling activity by its ID. The scaling activity details include the scaling activity status, error code, and error message. You can efficiently troubleshoot issues and analyze service performance based on the error message.

Debugging

You can run this interface directly in OpenAPI Explorer, saving you the trouble of calculating signatures. After running successfully, OpenAPI Explorer can automatically generate SDK code samples.

Authorization information

The following table shows the authorization information corresponding to the API. The authorization information can be used in the Action policy element to grant a RAM user or RAM role the permissions to call this API operation. Description:

  • Operation: the value that you can use in the Action element to specify the operation on a resource.
  • Access level: the access level of each operation. The levels are read, write, and list.
  • Resource type: the type of the resource on which you can authorize the RAM user or the RAM role to perform the operation. Take note of the following items:
    • For mandatory resource types, indicate with a prefix of * .
    • If the permissions cannot be granted at the resource level, All Resources is used in the Resource type column of the operation.
  • Condition Key: the condition key that is defined by the cloud service.
  • Associated operation: other operations that the RAM user or the RAM role must have permissions to perform to complete the operation. To complete the operation, the RAM user or the RAM role must have the permissions to perform the associated operations.
OperationAccess levelResource typeCondition keyAssociated operation
ess:DescribeScalingActivityDetailget
*ScalingGroup
acs:ess:{#regionId}:{#accountId}:scalinggroup/{#ScalingGroupId}
    none
none

Request parameters

ParameterTypeRequiredDescriptionExample
ScalingActivityIdstringYes

The ID of the scaling activity that you want to query. You can call the DescribeScalingActivities operation to query the IDs of scaling activities.

asa-bp1c9djwrgxjyk31****

Response parameters

ParameterTypeDescriptionExample
object
RequestIdstring

The ID of the request.

B13527BF-1FBD-4334-A512-20F5E9D3FB4D
ScalingActivityIdstring

The ID of the scaling activity.

asa-bp1c9djwrgxjyk31****
Detailstring

The details of the scaling activity. The result of a scaling activity is either successful or failed. If the scaling activity is rejected, no scaling activity details are returned.

new ECS instances \"i-bp16t2cgmiiymeqv****\" are created.

Examples

Sample success responses

JSONformat

{
  "RequestId": "B13527BF-1FBD-4334-A512-20F5E9D3FB4D",
  "ScalingActivityId": "asa-bp1c9djwrgxjyk31****",
  "Detail": "new ECS instances \\\"i-bp16t2cgmiiymeqv****\\\" are created."
}

Error codes

For a list of error codes, visit the Service error codes.

Change history

Change timeSummary of changesOperation
2025-03-14API Description UpdateView Change Details