I am trying to implement Login with Amazon into my company's Alexa skills, and have followed this tutorial to the letter to do so:
Unfortunately I always get the error "error_description: 'The request has an invalid parameter : access_token'" in the response when sending off the call to
The Account Linking step works without problems. The access token being used is valid. My code looks exactly the same as the same function call in the tutorial. Has something changed in the way the API needs to be accessed?