I've registered a bot and write a demo with MS bot and LUIS.I also hosted it in azure and got a https endpoint like
https://$team***plus:t27oCcSM0b85uzQhl2bg2W****KQAbe8yyjojegY4HrMvs@teambotplus.******eweb****et/deploy , and I paste it like https://$team***plus:t27oCcSM0b85uzQhl2bg2W****KQAbe8yyjojegY4HrMvs@teambotplus.******eweb****et/deploy/api/messages
However,when typed the Test button ,I just got :
enter image description here
It's also added in slack channel,and returned nothing after I send a message.
Three messages from slack channel issues
*POST to luckybot failed: POST to the bot's endpoint failed with HTTP status 403
*There was an error sending this message to your bot: Forbidden
*There was an error sending this message to your bot: Forbidden
The https endpoint should looks like https://YourWebAppName.azurewebsites.net/api/messages and that's the URL you should put in your Bot's configuration page.