 become Portal clients) Result: B2B workflow - customers register, shop, create orders at checkout, receive invoices automatically. Payment reminders sent per email settings. Orders accessible in Portal. Goal: Restrict shopping to registered members only with immediate payment Configuration: Cart Page: "Member Shop Cart" page (restricted to logged-in users) Checkout Page: "Member Checkout" page (restricted to logged-in users) Checkout Payment Mode: UNCHECKED (Pay Now) Require User Registration: CHECKED (enforces login requirement) Create Portal Clients: CHECKED (track member purchases) Result: Members login, shop from exclusive product selection, pay immediately. Orders tracked with member/client history.