This topic describes how to view the details of a scaling activity. You can view the details of a scaling activity to check the execution result of the activity that is triggered by a scheduled or event-triggered task.

Background information

A scaling activity can have the following states: Rejected, In Progress, Successful, Warning, and Failed. For more information, see Status of a scaling activity.
Note During a scaling activity, if ECS instances are not all added to a scaling group, Auto Scaling performs rollback on the ECS instances that are not added to the scaling group. After the scaling activity is completed, the scaling activity enters the Warning state. For more information, see ECS instance rollback.


  1. Log on to the Auto Scaling console.
  2. In the left-side navigation pane, click Scaling Groups.
  3. In the top navigation bar, select a region.
  4. You can use either of the following methods to open the details page of a scaling group.
    • In the Scaling Group Name/ID column, click a scaling group name.
    • Click Manage in the Actions column corresponding to a scaling group.
  5. In the left-side navigation pane, click Scaling Activities.
  6. Find the target scaling activity and click View Details in the Actions column.