I’m not able to test the webhook from the sandbox panel. It is always returning as 404.
But when I test by Insomnia it returns status 200 and I can read the sent json.
The endpoint is correctly configured in the API dashboard panel using the option delivery/updates , but even so it doesn’t update my status in the script I made.
I can’t know if it’s working, as said, on your panel it always returns 404 status.