Bot not responding to mentions in channels

Hi Marcel,

I have set the appropriate permission scopes on the slack website for my bot to respond to mentions in channels.

Somehow when the app is mentioned by me in a channel it does not respond but when I send it a DM it does respond but not when I mention its name in the DM.

Also, I have installed the app into the workspace but it only responds to messages from my. What do other users have to do in order for them to be able to get responses from the bot?