FEI Checkout Upsell helps merchants sell their own add-on services such as protection plans, installation, cleaning, support, or other service offers before checkout. Merchants can create a service catalog, set prices and terms, target offers by product, collection, tag, or all products, and display services on product pages, cart pages, and cart drawers. Services are added as Shopify line items for clear orders and reporting. Core storefront placements do not require Shopify Plus.