title: Migrating from TFS to Azure Devops - how to change application id in old collections?
body: <p>I'm migrating from "tfs" to <code>Azure Devops Server 2019</code> and I already restored my data, but when I try to attach collection </p>
  
  <p>I was told that I need to change <code>ApplicationId</code> in Old Collections, but how can I do that?</p>
  
  <p><a href="https://i.stack.imgur.com/xXfR6.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/xXfR6.png" alt="enter image description here"></a></p>
  
  <p><a href="https://i.stack.imgur.com/lRwct.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/lRwct.png" alt="enter image description here"></a></p>