title: Operation: Create; Exception: [Status Code: Unauthorized; Reason: Caller does not have access to '/chats/{id}/messages/' resource]
body: <p>I am getting this error while working on MS graph create subscription for Microsoft Teams.</p>
  
  <p>Here is my request example
  POST <a href="https://graph.microsoft.com/beta/subscriptions" rel="nofollow noreferrer">https://graph.microsoft.com/beta/subscriptions</a></p>
  
  <p>Request body
  {
              "changeType": "created,updated",
              "notificationUrl": "{notificationUrl}",
              "lifecycleNotificationUrl": "{lifenotificationUrl}",
              "resource": "/chats/{id}/messages",
              "includeResourceData": true,
              "encryptionCertificate": "{base64exncrytionsertificate}",
              "encryptionCertificateId": "{customID}",
              "expirationDateTime": "2020-02-28T04:00:00.0000000Z",
              "clientState": "{Notifications}"
            }</p>