title: Platform Exception while flutter paytm integration
body: <p>I am getting the following platform exception while integrating payTM to my flutter application using the payTM all in one sdk. Could anyone kindly please help me out?</p>
  <blockquote>
  <p>PlatformException(0, App Invoke is not allowed for this merchant,
  null, null)</p>
  </blockquote>