Deleting a Campaign
If a campaign is was duplicated or created by accident, or has been determined to be unneeded, it can be deleted by an Admin account user.
Select the campaign that needs to be removed, then right-click, and select Remove Campaign.
Only campaigns without any linked income can be removed, so any income that may be attached will need to be re-linked to another campaign or unlinked from this campaign before the campaign can be removed.