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Auto Scaling:API usage notes

Last Updated:Jun 15, 2026

Read the following usage notes before you call Auto Scaling API in OpenAPI Explorer to ensure successful calls.

Prerequisites

Before you call Auto Scaling API in OpenAPI Explorer, activate Auto Scaling and make sure that Auto Scaling and Resource Access Management (RAM) users have the required permissions:

Errors

Auto Scaling uses RAM to obtain the permissions on ECS API and Elastic Container Instance API to scale ECS instances and elastic container instances. If Auto Scaling does not have the required permissions, the following errors are returned.

HTTP status code

Error code

Error message

Description

403

Forbidden.Unsubscribed

Do not have permission to access this API.

Auto Scaling is not activated and you are not authorized to call this API operation.

403

Forbidden.Unauthorized

A required authorization for the specified action is not supplied.

Auto Scaling is not authorized to call this operation.