WebHook Payload HTTP status code 500

In the new Relic Alerts Page tying to create an Web hook to post custom formatted messages to slack. But it failed due to below Error.
{
response: 200,
Unable to invoke Webhook. Webhook responded with HTTP status code 500.
}

Any suggestions would be greatly Helpfull

Hi there @moturukalyan -

Thanks for posting. We’d love to help you get your webhook set up. Our colleague @gjohnson wrote a fantastic overview of webhooks and why they often fail. This Level Up post will likely shed some light on your situation:

If that doesn’t get you pointed in the right direction, let us know and we will dig deeper with you.