Hi all,

I have created an app in Meta Developer Dashboard, coded up a simple endpoint with .NET 6 and setup a ngrok to make expose my webhook to Facebook Webhook Product

Facebook Webhook is able to verify the webhook url with the credentials I supply it and I am able to save it. I checked the ngrok log to ensure there is a request when it was saved.

Understand that my app is still in development mode so I can only trigger sample test json data from the webhook product, I tried to trigger the test for "Email", it works as expected and my ngrok is able to capture the post request.

Here comes the problem, when I tried to trigger the test for "messages", nothing was sent to my webhook nor ngrok log is showing anything.

I got confused and tried to do some research but didn't manage to anywhere. Can someone help/guide me?

Thanks in advance.