title: VSTS API Refresh Token Expires
body: <p>I'm using the VSTS REST API.  I use the refresh token, as instructed, to refresh the access token.  This morning, the refresh tokens stopped working.  Do they expire?  If the access token and refresh token have both expired, how do I proceed?  I can't find anything on this.</p>
  
  <p>For reference: <a href="https://www.visualstudio.com/en-us/docs/integrate/get-started/auth/oauth#refresh-an-expired-access-token" rel="nofollow">https://www.visualstudio.com/en-us/docs/integrate/get-started/auth/oauth#refresh-an-expired-access-token</a></p>