Restoring Archived Posts
Posts are archived when they are older than 6 months. However, should you need to restore old posts, you can do so by following these instructions.
Instructions for Restoring Archived Posts
If you are an administrator, you can access archived posts by following these simple steps:
The admin can access them by going to Account Settings > Select Restore Archived Posts.
This will allow archived posts to appear on your personal feed for a week, but they will no longer appear on your team feed.