title: Microsoft Graph Api returning ADOperationFailedTransient error when posting a new calendar event
body: <p>Our system integrates with Microsoft Graph Api to add calendar events to our User's outlook calendar</p>
  <p>We started seeing a new type of error returned from the API. The User's calendar had been syncing fine up until today.</p>
  <pre><code>{
    &quot;error&quot;:
    {
      &quot;code&quot;:&quot;ADOperationFailedTransient&quot;,
      &quot;message&quot;:&quot;The Active Directory operation failed with transient error.&quot;,
      &quot;innerError&quot;: {
        &quot;requestId&quot;:&quot;cfb964dd-4fe3-4324-9f61-258113668601&quot;,
        &quot;date&quot;:&quot;2020-11-06T00:20:39&quot;
      }
    }
  }
  </code></pre>
  <p>Does anyone know what this error means?</p>