title: Azure event grid api version undefined
body: <p>I created an azure event Topic and added an azure function (event trigger type) as a subscription. when trying to send a request through postman I get undefined API version.</p>
  <p>Error:</p>
  <p>{
  &quot;error&quot;: {
  &quot;code&quot;: &quot;ApiVersionUnspecified&quot;,
  &quot;message&quot;: &quot;An API version is required, but was not specified.&quot;
  }
  }</p>