Generally, Shopify Web Customers who registers in eCommerce gets created in POS system. Also on the other hand if any customer gets registered in POS that will also create a new account in Shopify. Reason for this is to provide uniform experience to the consumer, no matter they visit Physical Store or Online Store.
Our integrations are dynamic in nature. The mentioned offerings are the cumulative possibilities of the platform (actual scenarios are specifically organization/business-dependent). For any disparity, please refer to the latest version of the integration brochures.