title: Office 365 API to detect when office app is launched
body: <p>I'm trying to figure out if there is a way to detect when a user launches one of the Office apps (Word, Excel, PowerPoint, OneNote, OneDrive, etc) so that I can add logic to perform some tasks if it's the first time the user has launched that particular Office app.</p>
  
  <p>I was hoping the Microsoft Graph API would help me with this, but I can't find any guidance on how to do this. Is there a way to do this either with notifications or by polling/querying the API?</p>