To log in, you need to be approved by the administrator, and after logging in, you can check the main menu. In the order registration menu, the order details are saved by entering shipping information, customer information, and item information. In the Order History Inquiry & Edit menu, you can search the saved order details according to the search conditions and edit the contents by selecting the searched details. In the purchase ledger inquiry menu, you can check the purchase history for the entered period, focusing on the amount, and you can create an Excel file and send it by email. In the Current Inventory Inquiry menu, you can check the stock currently in stock by selecting the item and size. Please refer to the mobile phone screenshot.