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Server Migration Center:TagResources

Last Updated:Sep 08, 2025

You can call TagResources to create and attach tags to multiple SMC resources, such as migration sources and migration tasks.

Operation description

Description

Each SMC resource can have a maximum of 20 tags.

Before you attach tags, Alibaba Cloud checks the number of existing tags on a resource. If the number exceeds the limit, an error message is returned.

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Test

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

smc:TagResources

create

*ReplicationJob

acs:smc:{#regionId}:{#accountId}:replicationjob/{#ReplicationJobId}

None None

Request parameters

Parameter

Type

Required

Description

Example

ResourceType

string

Yes

The type of the SMC resource. Valid values:

  • sourceserver: migration source

  • replicationjob: migration task

sourceserver

ResourceId

array

Yes

The ID of the SMC resource. SMC resources include migration sources and migration tasks. You can specify 1 to 50 resource IDs.

s-bw526m1vi6x20c6g****

string

No

The ID of the SMC resource.

s-bw526m1vi6x20c6g****

Tag

array<object>

Yes

The list of tags.

object

No

The list of tags.

Key

string

No

The key of tag N to add to the SMC resource. Valid values of N: 1 to 20.

The tag key cannot be an empty string. The key can be up to 64 characters in length. It cannot start with aliyun or acs:. It also cannot contain http:// or https://.

TestKey

Value

string

No

The value of tag N to add to the SMC resource. Valid values of N: 1 to 20.

The tag value can be an empty string. The value can be up to 64 characters in length and cannot contain http:// or https://.

TestValue

Response elements

Element

Type

Description

Example

object

RequestId

string

The request ID.

3E8B9ABB-289A-44E6-942D-8AA9E493****

Examples

Success response

JSON format

{
  "RequestId": "3E8B9ABB-289A-44E6-942D-8AA9E493****"
}

Error codes

HTTP status code

Error code

Error message

Description

400 NumberExceed.Tags The maximum number of the Tag parameters cannot exceed 20. The maximum number of Tag parameters cannot exceed 20.
400 MissingParameter.ResourceType You must specify ResourceType. You must specify ResourceType.
400 InvalidResourceType.NotFound The specified ResourceType does not exist. The specified ResourceType does not exist.
400 NumberExceed.ResourceIds The maximum number of ResourceId parameters cannot exceed 50. The maximum number of ResourceId parameters cannot exceed 50.
400 Duplicate.ResourceId The ResourceId contains duplicate values. The ResourceId contains duplicate values.
400 InvalidResourceId.NotFound The specified ResourceIds do not exist. The specified ResourceIds do not exist.

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.