Dynamics 365 Customer Engagement的标准导入不支持并行导入了吗？

Add-PSSnapin Microsoft.Crm.PowerShell
Get-CrmSetting ImportSettings

using Microsoft.Xrm.Sdk;
using Microsoft.Xrm.Sdk.Client;
using Microsoft.Xrm.Sdk.Messages;
using System;
using System.Configuration;
using System.IO;
using System.ServiceModel;
using System.Threading;

namespace BulkImportRecords
{
    class Program
    {
        public static IServiceManagement<IOrganizationService> sm;
        public static AuthenticationCredentials authCredentials;
        static int importsequencenumberstartat = Convert.ToInt32(ConfigurationManager.AppSettings["importsequencenumberstartat"]);
        static int threadcount = Convert.ToInt32(ConfigurationManager.AppSettings["threadcount"]);
        static void Main(string[] args)
        {
            sm = ServiceConfigurationFactory.CreateManagement<IOrganizationService>(new Uri(ConfigurationManager.AppSettings["orgUrl"]));
            authCredentials = new AuthenticationCredentials();
            authCredentials.ClientCredentials.UserName.UserName = ConfigurationManager.AppSettings["userName"];
            authCredentials.ClientCredentials.UserName.Password = ConfigurationManager.AppSettings["passWord"];
            authCredentials = sm.Authenticate(authCredentials);
            try
            {
                for (var i = 0; i < threadcount; i++)
                {
                    Thread newThread = new Thread(new ParameterizedThreadStart(Work));
                    newThread.Start(i);
                }
                Console.ReadKey();
            }
            catch (FaultException ex)
            {
                Console.WriteLine("程序出现异常:ex.Message=" + ex.Message);
                Console.ReadKey();
            }
        }

        static void Work(object data)
        {
            try
            {
                Console.WriteLine("线程开始" + DateTime.Now.ToLongTimeString() + ";线程ID:" + Thread.CurrentThread.ManagedThreadId + ";接收的参数值为:" + data.ToString());
                int importsequencenumber = importsequencenumberstartat + Convert.ToInt32(data);
                OrganizationServiceProxy orgSvc = new OrganizationServiceProxy(sm, authCredentials.ClientCredentials);
                //OrganizationServiceProxy orgSvc = new OrganizationServiceProxy(sm, authCredentials.SecurityTokenResponse);
                //ManagedTokenOrganizationServiceProxy orgSvc = new ManagedTokenOrganizationServiceProxy(sm, authCredentials.ClientCredentials);
                string strReadFilePath = ConfigurationManager.AppSettings["filename"];
                int i = 0;
                int j = 1;
                int z = 1;
                ExecuteMultipleRequest multiReqs = new ExecuteMultipleRequest()
                {
                    Settings = new ExecuteMultipleSettings()
                    {
                        ContinueOnError = true,
                        ReturnResponses = false
                    },
                    Requests = new OrganizationRequestCollection()
                };
                using (StreamReader srReadFile = new StreamReader(string.Format(strReadFilePath, (Convert.ToInt32(data) + 1).ToString("00"))))
                {
                    while (!srReadFile.EndOfStream)
                    {
                        string strReadLine = srReadFile.ReadLine(); //读取每行数据
                        if (i != 0)//如果第一行包括标题的话要过滤掉
                        {
                            var arrLine = strReadLine.Split(‘,‘);
                            CreateRequest req = new CreateRequest();
                            var createEntity = new Entity("ly_test");
                            createEntity["ly_name"] = arrLine[0];
                            createEntity["ly_singletext1"] = arrLine[1];
                            createEntity["ly_singletext2"] = arrLine[2];
                            createEntity["ly_singletext3"] = arrLine[3];
                            createEntity["importsequencenumber"] = Convert.ToInt32(importsequencenumber);
                            req.Target = createEntity;
                            if (j <= 1000)
                            {
                                multiReqs.Requests.Add(req);
                            }
                            else
                            {
                                multiReqs.Requests = new OrganizationRequestCollection();
                                multiReqs.Requests.Add(req);
                                j = 1;
                            }
                            if (j == 1000)
                            {
                                orgSvc.Execute(multiReqs);
                                Console.WriteLine("线程:" + Thread.CurrentThread.ManagedThreadId + "-导入完毕" + z + "条" + DateTime.Now.ToString());
                            }
                            z++;
                            j++;
                        }
                        i++;
                    }
                }
                orgSvc.Execute(multiReqs);
                Console.WriteLine("线程结束" + DateTime.Now.ToLongTimeString() + ";线程ID:" + Thread.CurrentThread.ManagedThreadId);
            }
            catch(FaultException<Microsoft.Xrm.Sdk.OrganizationServiceFault> ex)
            {
                Console.WriteLine("执行遇到异常:" + ex.Detail.ErrorCode + ex.Message + ex.StackTrace);
            }
            catch (Exception e)
            {
                Console.WriteLine("执行遇到异常:" + e.Message + e.StackTrace);
            }
        }
    }
}

<?xml version="1.0" encoding="utf-8"?>
<configuration>
  <startup>
    <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.6.2"/>
  </startup>
  <appSettings>
    <add key="userName" value="crmadmin@luoyong.me"/>
    <add key="passWord" value="Pass"/>
    <add key="orgUrl" value="https://demo.luoyong.me/XRMServices/2011/Organization.svc"/>
    <add key="filename" value="D:\dataimport\data{0}.csv"/>
    <add key="importsequencenumberstartat" value="1000000"/>
    <add key="threadcount" value="10"/>
  </appSettings>
</configuration>