Workspaces - how delete a Workspace
If you're a Site Admin, you can delete a Workspace from the 'Site -> Settings -> Workspaces' page.
You won't be able to delete a Workspace if it still has any assigned activities and/or users. If you try to delete a Workspace which contains either you'll see a warning message.
Users and activities must first be assigned to another Workspace, or deleted as appropriate. This is designed to prevent accidental deletion of Workspaces with open activities.