You can enable ACL backups on a content group.
From the navigation pane, go to Protect > Object storage.
The Object storage page appears.
In the Name column, click the object storage repository that contains the content group for which you want to enable ACL backup.
The object storage repository page appears.
Click on the content group that you want to enable ACL backup.
The content group page appears.
In the General section, move the Back up ACL toggle key to the right.