500 internal server error while using webhook (POST) in contact point

recently switched to unified alerting in grafana v8.3.4
noticed 500 internal server error while using webhook (POST) in contact point
what could be the issue

@vinit123 have you already seen the example at Configure the webhook notifier | Grafana documentation

A few tips to figure out what might be going on:

  • What do you see if you use the test button for the contact point and also watch the request/response in the network tab of your browser’s developer tools?

  • Are you able to send a request with a REST client or curl? That might be a good place to test that it includes the expected elements for your target