title: Activity after deep linking a chat in teams
body: <p>I have a .Net Core application from where I have deep linked a particular chatbot of Microsoft Teams. It is an Azure Bot. It is properly opening the chat in Teams, which is a one-time process. However, as soon as the chat opens I want to catch a bot activity, which I'm unable to do. I want to send a welcome message as soon as the chat opens.</p>
  <p>Please suggest which activity I can catch after deep linking or what other approaches I can take to achieve it.</p>