Using comments and tagging people.
Unfortunately for guest users (non Fenêtre personnel) it is not possible to tag a person in the comments through an @. This is a limitation in Teams.
Until this is solved within Teams, you can put an @ in post channel with a link to the item.
Share screen captures and recording fast and easy through Teams?
Use our Fenêtre Capture Tool! Free to download through the Microsoft Store. Sharing images in Teams has never been this easy.