The "SC Catalog Item" widget allows to submit the request leaving the cart items as isSummaryThe "Order Now" button on the Service Portal allows the user to submit the catalog item even though the catalog item is added to the cart using 'Add to Cart'. Steps: Access a Catalog item on the portalClick on "Add to cart". Notice that the item gets added to the cartClick on "Order Now". Notice that the current item gets submitted and the item added to cart remains in the cartRelated LinksThis is the intended behavior in the Service Portal.The 'Add to cart' functionality helps when the user wants to add different items to the cart and then place an order. When a user wants to Order the current item, they can click on the "Order Now" button and complete the order. It is an intrinsic message to the user whether to add it to the cart or order it now.