Payload not being received by Apigee Proxy

I have a V2 Webhook for a Apigee proxy, I have tried triggering an event to create a event.triggered payload to be sent to my apigee proxy but it seems the payload never reaches the proxy. I have tested the proxy with postman and it works, so the problem is pagerduty -> apigee proxy.

Is there a way to see what error is return when pagerduty tries to send something to a webhook?

Is there an access control list or similar that might be blocking PagerDuty’s IP addresses? Our support team can look up what errors are returned for you via