I have created a sample organization with AAD using the E5 license. This allows me to use teams as well. Now I want to use App Studio to create my own Team App and add a bot. In the App Studio settings you will find the Bots button where you can create a new Bot. I have done this and added a messaging endpoint. This points to a locally hosted web service.
According to App Studio, you don't need more settings. Now I create my app and upload it to my MSTeams team by clicking the button "Upload Custom App". It is now also available to me. I can access the app via @mention. But if I type "@mention hello" now, nothing happens.
If I access my web service via Postman I get the response: "Hello, I am the response". What am I doing wrong? Please help me!