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    Auto Scaling:ModifyNotificationConfiguration

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    Auto Scaling:ModifyNotificationConfiguration

    Last Updated:Sep 10, 2026

    Modifies a notification for Auto Scaling events and resource changes.

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    RAM authorization

    The table below describes the authorization required to call this API. You can define it in a Resource Access Management (RAM) policy. The table's columns are detailed below:

    • Action: The actions can be used in the Action element of RAM permission policy statements to grant permissions to perform the operation.

    • API: The API that you can call to perform the action.

    • Access level: The predefined level of access granted for each API. Valid values: create, list, get, update, and delete.

    • Resource type: The type of the resource that supports authorization to perform the action. It indicates if the action supports resource-level permission. The specified resource must be compatible with the action. Otherwise, the policy will be ineffective.

      • For APIs with resource-level permissions, required resource types are marked with an asterisk (*). Specify the corresponding Alibaba Cloud Resource Name (ARN) in the Resource element of the policy.

      • For APIs without resource-level permissions, it is shown as All Resources. Use an asterisk (*) in the Resource element of the policy.

    • Condition key: The condition keys defined by the service. The key allows for granular control, applying to either actions alone or actions associated with specific resources. In addition to service-specific condition keys, Alibaba Cloud provides a set of common condition keys applicable across all RAM-supported services.

    • Dependent action: The dependent actions required to run the action. To complete the action, the RAM user or the RAM role must have the permissions to perform all dependent actions.

    Action

    Access level

    Resource type

    Condition key

    Dependent action

    ess:ModifyNotificationConfiguration

    update

    *ScalingGroup

    acs:ess:{#regionId}:{#accountId}:scalinggroup/{#ScalingGroupId}

    		 None None

    Request parameters

    Parameter

    Type

    Required

    Description

    Example
    ScalingGroupId

    string

    Yes

    The ID of the scaling group.

    asg-bp1igpak5ft1flyp****
    NotificationArn

    string

    Yes

    The identity of the Notification Recipient. The following notification methods are supported when you configure the Settings for this parameter:

    • CloudMonitor monitoring. The parameter value is in the format of acs:ess:{region-id}:{account-id}:cloudmonitor.

    • MNS queue. The parameter value is in the format of acs:mns:{region-id}:{account-id}:queue/{queuename}.

    • MNS topic. The parameter value is in the format of acs:mns:{region-id}:{account-id}:topic/{topicname}.

    The variables in the parameter format have the following meanings:

    • region-id: the region ID of the scaling group.

    • account-id: the Alibaba Cloud account ID.

    • queuename: the name of the MNS queue.

    • topicname: the name of the MNS topic.

    acs:ess:cn-beijing:161456884340****:cloudmonitor
    NotificationType

    array

    Yes

    One or more types of Auto Scaling event and resource change notifications. Valid values of N: 1 to 8.

    AUTOSCALING:SCALE_OUT_SUCCESS

    string

    No

    One or more types of Auto Scaling event and resource change notifications. Valid values of N: 1 to 8.

    • AUTOSCALING:SCALE_OUT_SUCCESS: The scale-out scaling activity succeeded.

    • AUTOSCALING:SCALE_IN_SUCCESS: The scale-in scaling activity succeeded.

    • AUTOSCALING:SCALE_OUT_ERROR: The scale-out scaling activity failed.

    • AUTOSCALING:SCALE_IN_ERROR: The scale-in scaling activity failed.

    • AUTOSCALING:SCALE_REJECT: The scaling activity was rejected.

    • AUTOSCALING:SCALE_OUT_START: The scale-out scaling activity started.

    • AUTOSCALING:SCALE_IN_START: The scale-in scaling activity started.

    • AUTOSCALING:SCHEDULE_TASK_EXPIRING: A reminder that a scheduled task is about to expire.

    • SCALING_GROUP_DIAGNOSE: Scaling group diagnostics.

    • AUTOSCALING:SCALE_OUT_WARN: The scale-out scaling activity partially succeeded.

    • AUTOSCALG:SCALE_IN_WARN: The scale-down scaling activity partially succeeded.

    AUTOSCALING:SCALE_OUT_SUCCESS
    RegionId

    string

    No

    The region ID of the scaling group.

    cn-beijing
    TimeZone

    string

    No

    The time zone for message notifications. The offset relative to Coordinated Universal Time (UTC), such as UTC+8 or UTC-7.

    UTC+8
    MessageEncoding

    string

    No

    The encoding method for the notification content. Valid values:

    • PlainText: no encoding. The content is transmitted in plaintext.

    • Base64: Base64 encoding.

    Default value: Base64.

    Note

    This parameter can be set only for MNS Notification Recipient Settings.

    PlainText

    Response elements

    Element

    Type

    Description

    Example

    object

    RequestId

    string

    The request ID.

    473469C7-AA6F-4DC5-B3DB-A3DC0DE3****

    Examples

    Success response

    JSON format

    {
  "RequestId": "473469C7-AA6F-4DC5-B3DB-A3DC0DE3****"
}

    Error codes

    See Error Codes for a complete list.

    Release notes

    See Release Notes for a complete list.