Permission to Pin Post
These steps guide you through assigning the Pin Posts in Feeds permission through a user profile.
Before you assign the Pin Posts in Feeds permission, enable post pinning for your org. Go to Setup > Chatter Settings, and select Allow post pinning.
Assign the Pin Posts in Feeds permission in Setup.
1. In Setup, enter Profiles in the Quick Find box, then click Profiles in your results.
2. Click Edit next to the profile you plan to use.
3. Under Administrative Permissions, select Pin Posts in Feeds.
4. Click Save.
Everyone assigned the edited profile can pin up to three posts to the top of the group and topics feeds that they have access to.
NOTE The Pin Post option appears on the post overflow menu only to users with permission. The option appears on the post overflow menu only in the feed and not in the post’s detail view.