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    Auto Scaling:DescribeLimitation

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    Auto Scaling:DescribeLimitation

    Last Updated:Aug 28, 2026

    Queries Auto Scaling resource quotas, such as the maximum numbers of scaling groups, scheduled tasks, scaling configurations, and attached load balancers per account or scaling group.

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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:DescribeLimitation

    get

    *All Resource

    *

    		 None None

    Request parameters

    Parameter

    Type

    Required

    Description

    Example

    No parameters required.

    Response elements

    Element

    Type

    Description

    Example

    object

    MaxNumberOfScheduledTasks

    integer

    Maximum number of scheduled tasks per region per account.

    Note

    To view or increase this quota, go to Quota Center.

    70
    MaxNumberOfLoadBalancers

    integer

    Maximum number of CLB (formerly SLB) instances per scaling group.

    Note

    To view or increase this quota, go to Quota Center.

    30
    MaxNumberOfMaxSize

    integer

    Maximum number of instances allowed in a scaling group.

    Note

    To view or increase this quota, go to Quota Center.

    2000
    MaxNumberOfAlbServerGroup

    integer

    Maximum number of ALB server groups per scaling group.

    Note

    To view or increase this quota, go to Quota Center.

    30
    MaxNumberOfNlbServerGroup

    integer

    Maximum number of NLB server groups per scaling group.

    Note

    To view or increase this quota, go to Quota Center.

    30
    MaxNumberOfDBInstances

    integer

    Maximum number of ApsaraDB RDS instances per scaling group.

    Note

    To view or increase this quota, go to Quota Center.

    30
    MaxNumberOfScalingConfigurations

    integer

    Maximum number of scaling configurations per scaling group.

    Note

    To view or increase this quota, go to Quota Center.

    70
    MaxNumberOfMinSize

    integer

    Minimum number of instances required in a scaling group. Must be consistent with MaxNumberOfMaxSize.

    2000
    MaxNumberOfLifecycleHooks

    integer

    Maximum number of lifecycle hooks per scaling group.

    10
    MaxNumberOfScalingInstances

    integer

    Maximum number of ECS instances or elastic container instances that can be scaled simultaneously in a scaling group.

    500
    MaxNumberOfScalingGroups

    integer

    Maximum number of scaling groups per region per account.

    Note

    To view or increase this quota, go to Quota Center.

    200
    RequestId

    string

    The request ID.

    BE9BEB41-E7B8-4C7D-A3CF-2DCB1066****
    MaxNumberOfNotificationConfigurations

    integer

    Maximum number of notification rules per scaling group.

    6
    MaxNumberOfVServerGroups

    integer

    Maximum number of CLB vServer groups per scaling group.

    Note

    To view or increase this quota, go to Quota Center.

    5
    MaxNumberOfScalingRules

    integer

    Maximum number of scaling rules per scaling group.

    Note

    To view or increase this quota, go to Quota Center.

    70

    Examples

    Success response

    JSON format

    {
  "MaxNumberOfScheduledTasks": 70,
  "MaxNumberOfLoadBalancers": 30,
  "MaxNumberOfMaxSize": 2000,
  "MaxNumberOfAlbServerGroup": 30,
  "MaxNumberOfNlbServerGroup": 30,
  "MaxNumberOfDBInstances": 30,
  "MaxNumberOfScalingConfigurations": 70,
  "MaxNumberOfMinSize": 2000,
  "MaxNumberOfLifecycleHooks": 10,
  "MaxNumberOfScalingInstances": 500,
  "MaxNumberOfScalingGroups": 200,
  "RequestId": "BE9BEB41-E7B8-4C7D-A3CF-2DCB1066****",
  "MaxNumberOfNotificationConfigurations": 6,
  "MaxNumberOfVServerGroups": 5,
  "MaxNumberOfScalingRules": 70
}

    Error codes

    See Error Codes for a complete list.

    Release notes

    See Release Notes for a complete list.