Release Notes and Announcements

Release Notes

Public Image Release Notes

Official End of Support Plan for the Operating System

Announcements

Product Introduction

CVM Overview

Strengths

Basic Concepts

Regions and Zones

Tutorial

Service Regions and Service Providers

Billing

Billing Overview

Billing Modes

Billing Items

Billing Mode Conversion Overview

Purchasing Instances

Configuration Adjustment Billing Guide

Overdue Payments

Getting Started

Purchasing a Customized Linux Instance

Purchasing a Customized Windows Instance

User Guide

Operation Guide Overview

Use Limits

Instances

Spot Instances

Reserved Instances

Images

Storage

Backup and Restoration

Network

Security

Passwords/Keys

Monitoring and Alarms

Ops Management

Convenience Features

Migrating a Server

Online Migration

Migration Consultation

Troubleshooting

CVM Login Failures

Windows Instance Login Failures

Linux Instance Login Failures

Other Login Failures

Instance Running Failures

Linux Instance Memory Failures

Network Failures

Use Cases

Suggestions on CVM Model Selection

Environment Building

Website Building

Application Building

Visual GUI Building

Uploading Local Files to CVM

Network Performance Test

ModifyInstancesProject

PDF

Focus Mode

Font Size

Last updated: 2025-11-13 11:06:34

1. API Description

Domain name for API request: cvm.intl.tencentcloudapi.com.

This API is used to change the project to which an instance is assigned.

Project is a virtual concept. You can create multiple projects under one account, manage different resources in each project, and assign different instances to different projects. You may use the DescribeInstances API to query instances and use the project ID to filter the results.
You cannot modify the project of an instance that is bound to a load balancer. You need to unbind the load balancer from the instance by using the DeregisterInstancesFromLoadBalancer API before using this API.
Batch operations are supported. Up to 100 instances per request is allowed.
You can use the API DescribeInstances to query the operation result. If the LatestOperationState in the response is SUCCESS, the operation is successful.

A maximum of 10 requests can be initiated per second for this API.

We recommend you to use API Explorer

Try it

API Explorer provides a range of capabilities, including online call, signature authentication, SDK code generation, and API quick search. It enables you to view the request, response, and auto-generated examples.

2. Input Parameters

The following request parameter list only provides API request parameters and some common parameters. For the complete common parameter list, see Common Request Parameters.

Parameter Name	Required	Type	Description
Action	Yes	String	Common Params. The value used for this API: ModifyInstancesProject.
Version	Yes	String	Common Params. The value used for this API: 2017-03-12.
Region	Yes	String	Common Params. For more information, please see the list of regions supported by the product. This API only supports: ap-bangkok, ap-beijing, ap-chengdu, ap-chongqing, ap-guangzhou, ap-hongkong, ap-jakarta, ap-nanjing, ap-seoul, ap-shanghai, ap-shanghai-fsi, ap-shenzhen-fsi, ap-singapore, ap-tokyo, eu-frankfurt, na-ashburn, na-siliconvalley, sa-saopaulo.
InstanceIds.N	Yes	Array of String	Instance IDs. To obtain the instance IDs, you can call `DescribeInstances` and look for `InstanceId` in the response. You can operate up to 100 instances in each request.
ProjectId	Yes	Integer	Project ID. You can use the API `AddProject` to create projects, and obtain the `projectId` field in the response of the `DescribeProject` API. When using the DescribeInstances API to query instances later, you can filter the results by the project ID.

3. Output Parameters

Parameter Name	Type	Description
RequestId	String	The unique request ID, generated by the server, will be returned for every request (if the request fails to reach the server for other reasons, the request will not obtain a RequestId). RequestId is required for locating a problem.

4. Example

Example1 Modifying the projects of two instances

This example shows you how to change the projects of two instances.

Input Example

POST / HTTP/1.1
Host: cvm.intl.tencentcloudapi.com
Content-Type: application/json
X-TC-Action: ModifyInstancesProject
<Common request parameters>

{
    "ProjectId": 1045,
    "InstanceIds": [
        "ins-5d8a23rs",
        "ins-r8hr2upy"
    ]
}

Output Example

{
    "Response": {
        "RequestId": "6ef60bec-0242-43af-bb20-270359fb54a7"
    }
}

5. Developer Resources

SDK

TencentCloud API 3.0 integrates SDKs that support various programming languages to make it easier for you to call APIs.

Command Line Interface

Tencent Cloud CLI 3.0

6. Error Code

The following only lists the error codes related to the API business logic. For other error codes, see Common Error Codes.

Error Code	Description
InternalServerError	Internal error.
InvalidInstance.NotSupported	This instance is not supported.
InvalidInstanceId.Malformed	Invalid instance `ID`. The specified instance `ID` has an invalid format. For example, `ins-1122` has an invalid `ID` length.
InvalidInstanceId.NotFound	No instance found.
InvalidParameterValue	Incorrect parameter value.
InvalidParameterValue.InstanceIdMalformed	Invalid instance ID. Please enter a valid ID, such as ins-xxxxxxxx (“x” represents a lower-case letter or a number).
InvalidParameterValue.LimitExceeded	The number of parameter values exceeds the limit.
InvalidProjectId.NotFound	Invalid project ID: the specified project ID does not exist.
MissingParameter	Missing parameter.
MutexOperation.TaskRunning	An identical job is running.
OperationDenied.InstanceOperationInProgress	The instance has an operation in progress. Please try again later.
UnsupportedOperation.InstanceStateIsolating	Unable to isolate: the instance is isolated

Help and Support

Was this page helpful?

You can also Contact sales or Submit a Ticket for help.

Help us improve! Rate your documentation experience in 5 mins.

Feedback

tencent cloud

Cloud Virtual Machine