Deleting a Product completely removes it from all environments. Under normal circumstances, only products that have never been promoted to Live or those that have since been replaced by a new product should be deleted. Deleted products cannot be restored.
To Delete a Product
From the home page, select the product from the list in the Products panel and click on the Delete icon.
Page url: https://decision.cudl.com/help/index.html?deleting_products.htm