You can exclude a subclient from backups of a SharePoint Server. Excluding a subclient does not remove the subclient from the SharePoint Server, but the subclient is not backed up.
From the navigation pane, click Protect > Applications > SharePoint.
The SharePoint page appears.
Click the documents server that contains the data that you want to back up.
The documents server page appears.
On the Content tab, in the row for the subclient that you want to exclude, click the action button , and then click Manage > Exclude from backup.