title: Get Token call to Microsoft Graph REST Api gives 400 error
body: <p>I am able to connect to MS Graph API through the Graph Explorer, and using the SDK in C#.  However, when I use the same information as the SDK in Postman, I get a 400 error.  I am POSTing to <a href="https://login.microsoftonline.com/TENANTID/oauth2/v2.0/token" rel="nofollow noreferrer">https://login.microsoftonline.com/TENANTID/oauth2/v2.0/token</a> HTTP/1.1
  (with our tenant id) and using x-www-form-urlencoded to send:</p>
  <ul>
  <li>client_id=OURCLIENTID</li>
  <li>scope=https://graph.microsoft.com/.default</li>
  <li>client_secret=OURCLIENTSECRET</li>
  <li>grant_type=client_credentials</li>
  </ul>
  <p>The response is always a 404.</p>
  <p>I based this in the Get Token Request call from Microsoft(<a href="https://docs.microsoft.com/en-us/graph/auth-v2-service#token-request" rel="nofollow noreferrer">https://docs.microsoft.com/en-us/graph/auth-v2-service#token-request</a>), so I am not sure why it is not working.  Any help would be appreciated.</p>