I am currently using Proactive events AMAZON.MediaContent.Available schema.
I have written code in nodejs and java, My nodejs code executed with 403 error response. But when I take the same json payload generated by my nodejs code(I got it through console logging) and the access token(console logging) its working from postman desktop client.
Any specific reason for this behaviour, do I need to take care of anything ? why I am unable to receive the notification through code ?