Help Center/ IAM Identity Center/ API Reference/ API/ Instance Management/ Selecting a Region for Enabling a Service Instance
Updated on 2025-12-12 GMT+08:00
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Selecting a Region for Enabling a Service Instance

Function

This API is used to select a region where an IAM Identity Center service instance is to be enabled. It can be called only from the organization's management account.

Authorization Information

The account root user has the permissions to call all APIs, but its IAM users must have the following identity policy-based permissions to call this API. For more information, see Permissions and Supported Actions.

Action

Access Level

Resource (*: Required)

Condition Key

Alias

Dependencies

IdentityCenter:instance:registerRegion

Write

-

-

-

-

URI

POST /v1/register-regions

Request Parameters

Table 1 Parameters in the request header

Parameter

Mandatory

Type

Description

X-Security-Token

No

String

Security token (session token) of your temporary security credentials. If a temporary security credential is used, this header is required.
Table 2 Parameters in the request body

Parameter

Mandatory

Type

Description

region_id

Yes

String

Region ID.

Response Parameters

Status code: 200

Successful

Status code: 400

Table 3 Parameters in the response body

Parameter

Type

Description

error_code

String

Error code.

error_msg

String

Error message.

request_id

String

Unique ID of a request.

Status code: 403

Table 4 Parameters in the response body

Parameter

Type

Description

error_code

String

Error code.

error_msg

String

Error message.

request_id

String

Unique ID of a request.

encoded_authorization_message

String

Encrypted error message.

Status code: 409

Table 5 Parameters in the response body

Parameter

Type

Description

error_code

String

Error code.

error_msg

String

Error message.

request_id

String

Unique ID of a request.

Example Request

Selecting a region where an IAM Identity Center service instance is to be enabled

POST https://{hostname}/v1/regions/register

{
  "region_id" : "cn-north-4"
}

Example Response

None

Status Codes

Status Code

Description

200

Successful.

400

Bad request.

403

Forbidden.

409

Conflict.

Error Codes

For details, see Error Codes.

Parent topic: Instance Management