An administrator would enable Person Accounts during Order Management setup for the use case of connecting Order Management to B2C Commerce. B2C Commerce is a cloud-based platform that enablesbusinesses to create and manage online storefronts for consumers. B2C Commerce uses Person Accounts to represent individual shoppers who place orders on the storefronts. Person Accounts are a type of account that combines account and contact information into a single record. To connect Order Management to B2C Commerce, an administrator needs to enable Person Accounts in Order Management and install the B2C Commerce Integration package from AppExchange. References: B2C Commerce Integration, [Person Accounts]