Dialogflow CX Webhook

[ewuraba]

Dialogflow CX webhook not able to retrieve information from App scripts when I test with the simulator in a Draft environment.
Webhook subtype: standard
Webhook url: ends with /exec

For access permissions, shared default service account with google sheets and given it an editor role.

[There are no errors recorded. When a training phase for that intent is triggered, it just loads for a while and nothing happens. I set partial response on, and increased timeout to 15, added event handlers for webhook errors and none of them is invoked.]

However when I run each of my App scripts functions, I get desired results from google sheets in execution logs.

[Do I need to use flexible subtype and make calls to my app scripts functions in the request body?]

[xavidop]

what is the error you are getting on Dialogflow CX? make sure your webhook is publicly available.

[ewuraba]

I have updated the question with error status. For reference: (there are no errors recorded)

[xavidop]

did you make sure the endpoint is public and reachable? and no credentials are needed?

[ewuraba]

its publicly accessible.

[xavidop]

can you confirm that a simple curl from any computer works? I just want to make sure that it is not using any cached credentials