title: Migrate VSO to VSO with history and work items
body: <p>I'm using VSO xxx.visualstudio.com. We have to migrate with history to yyy.visualstudio.com. I know there is no direct tool. Looking for good approach or solution.</p>
  
  <p>Unique Difference with, below question:
  <a href="https://stackoverflow.com/questions/24681217/visual-studio-online-migration-vso-to-vso">Visual Studio Online migration (VSO to VSO)</a></p>
  
  <ol>
  <li>Export Source code with work Items</li>
  <li>TFS Integration Platform tool is not working.</li>
  <li>OpsHub company is taking too long to reply.</li>
  </ol>