Edit a comment for two minutes
How often do you click Post when adding a comment, and then realize that you spelled something wrong or left out a word? After posting a comment, you can edit the comment for the next two minutes. Click the More icon (three dots) below the comment, click Edit for 2 min in the dropdown menu that opens, make your changes, and click the Update button. The default time period during which you can edit is two minutes, but your intranet administrator may have changed it to a different length of time.
Delete your comment
To delete your comment, click the garbage can icon below the comment and click Delete in the pop-up window that appears to confirm the deletion. Your comment will disappear from the page immediately.
(If you don't see the garbage can icon, click the More icon (three dots) to open the menu and find the Delete action.)
Page owner can delete anyone's comments
You can always delete your own comments no matter what page they are on. But only the page owner and intranet admins can delete comments made by another person.