I am using POST /webhooks to create a new webhook in my project with adobe trial account. I am able to hit the /transientDocuments API and /agreement api succesfully with the generated documentId and agreementId s but there is an issue with /webhooks to create a new webhook. Below is the response i am getting:
"message": "Validation for webhook url failed. Please make sure that the webhook url responds with a valid HTTP response code and a valid client id."
I have given everything(endpoint, oauth token, request headers etc.) correctly as per adobe docs v6.
My webhook url is deployed on AWS which is public https and accepts GET, POST and returns adobe client id for get request with status code 200.