Within Teamwork, you can comment on project items such as tasks, milestones, files, notebooks, and links.
When you hover over a particular project item, you will see a speech bubble icon for adding comments.
If a project item has existing comments, the comments icon will display a number representing the number of comments posted on that item. The icon will display green if you have any unread comments.
Hovering over the icon will give you a quick view of the most recent comment. You can mark the comment as read, add a reply, or view all comments on the item.
You can see all comments across all project items in the project's Comments tab.