I just received this inquiry from a manager who also happens to be a team owner. He wants to disable all notifications for his team members. He can do this for new team members but is it possible to change the notification settings for existing team members by himself as he doesn't want to bother the members to do it?
No, notification settings are user defined! Only thing is that owners can favorite channels for users, making them get notifications per default! There’s nothing that prevents users from changing this though etc..
