Pin and unpin a post
Admins can pin a post to keep important information or announcements visible at the top of the social feed. This feature helps to direct everyone’s attention to a specific post, ensuring that more employees in the organization view it.
After pinning a post, you can unpin it if required.
Navigate to Home > Social.
Pin post
You can pin any post available in the Social module.
Click the Overflow 
Menu at the top right of the post and click Pin Post.
Unpin post
After pinning a post, you can unpin it, which removes it from the top of the social feed and returns it to its previous location.
Note: You can view the Unpin option only if you pin a post.
Click the Overflow 
Menu at the top right of the pinned post and click Unpin Post.
