Most merchants see revenue, but not real profit. MarginShield calculates the true profit and margin on every Shopify order by combining revenue with product cost, payment fees, shipping cost, packaging, and custom fees. It shows profit right inside the order page and a dashboard, flags loss-making orders, finds products missing a cost, and reveals how discounts and free shipping affect your bottom line. One-click setup pulls costs from your catalog and backfills recent orders.