Mark a post as “best” or “complete” in Google Groups

For some types of groups, you may want to mark a particular post as Best answer (for questions in a Q&A forum) or Complete (for discussions in Collaborative Inboxes) in order to resolve the topic.

To do so, open the topic and click Mark as complete or Mark as best answer on the appropriate post. For example:



Note: These options are available only in certain situations, depending on the type of group and whether you’ve been granted permission to mark your favorite reply. Also note that you might be able to mark favorite posts in topics you started, but not anyone else’s topics.

The Topics view indicates which topics have been resolved, and how (answered or completed). In this picture the green areas show that the topic was resolved by being marked as complete:

Reference: Google Group Help - Post topics and responses