You can pin important discussions to your organization's team pages for easy reference, and unpin discussions that are no longer relevant.
In the top right corner of GitHub Enterprise, click your profile photo, then click Your profile.
On the left side of your profile page, under "Organizations", click the icon for your organization.
Under your organization name, click Teams.
On the Teams tab, click the name of the team.
At the top of the team's page, click Discussions.
Click next to the team discussion you want to pin. You can also unpin a discussion by clicking the icon.