SAP is a German enterprise software company whose ERP systems run the back-office operations, from finance to supply chain, of a large share of the world's largest corporations. Its software is deeply embedded in customers' daily operations, which makes switching costly and gives SAP unusually durable, recurring relationships with the businesses that rely on it. The company has been moving its customer base from older on-premise software licenses to its cloud-based S/4HANA platform, a multi-year transition that reshapes its revenue mix toward subscriptions even as it creates near-term complexity. SAP's customers skew toward large, established enterprises rather than small businesses, giving it a different customer profile than software companies focused on startups and mid-market firms.