Guests in Teams don't receive notifications

Copper Contributor

In my project I need to cooperate with colleagues from another company. They also use microsoft applications. I have added them to the  teams. They can acces the team and see files, but they don't receive live, push notifications about activities 

This makes this tool useless for live cooperation. Now I have to send emails to let them know about stuff we add or post.
Is this behaviour normal? Why? How can you help so i can actually utilise the potension of this tool?
1 Reply
What kind of activities? They should receive posts in Channels or mentions