Cards are great places for on-target, productive conversations related to your projects. You can comment on a card, and others can reply with their own comments. You can mention using @, reference with !, and put hashtags (#) in comments.
To add a comment on a Card, follow the steps below.
- Double click the card you want to comment on.
- Click the Show Comments button.
- Enter your comments on the Card, then click the Send button. Your comment then gets added to the list of comments on the Card.