main function: o Search: You can search for sales partners, buyers, products, drug price fluctuations, and treatment materials. o Order: Provides drug ordering function including key drugs. o Inquiry: You can search order history, sales products, unsold history, current amount, and ledger information. o Status: You can search sales / receipt status, turnover date, target, business day, monthly sales, product payment status, and sales revenue ranking by account and person in charge. o Card payment: It is possible to perform card payment in conjunction with Key-In and payment app on mobile.