[jingai]

I have created the ARN endpoint but it doesn't appear to be a valid https address

The ARN isn't a URL, no. I am not sure if there is a URL exposed somewhere at which you could point a browser in this case.

Before I continue.. I've been pretty busy lately which accounts for my hasty replies.. and I don't personally use AWS, so I'm not totally sure on all the details there.

But, the next thing I think you should do is to check the logs for the skill to see if it's even seeing any of the requests from the service simulator. I'd guess they should be somewhere on the AWS console in the Lambda section.

If not.. please re-read the two sections I linked in this post very carefully and see if you overlooked anything.