The first paragraph discusses the use of mobile barcode carriers for electronic invoices. Customers can present their mobile barcode to the cashier for scanning or use their registered carrier for transactions. This allows them to store their invoices electronically, making it environmentally friendly and convenient. The invoices can be accessed and managed through the "Invoice Passbook" after the merchant uploads the transaction data, enabling efficient cloud-based invoice management. The second paragraph introduces the option to manually input invoices that cannot be scanned due to barcode damage or traditional long receipts. Users can manually add these invoices to the invoice passbook and include notes to avoid forgetting the details of the transactions. This feature ensures that all invoices, including those without transaction details, can be stored and managed in one place. The third paragraph highlights the automation of prize checking and redemption. Users can set up their prize account in the app, allowing them to automatically receive the prize money in their designated bank account for winning invoices stored in their mobile barcode or registered carrier. Additionally, users receive real-time push notifications when invoices are imported into the app, eliminating the worry of missing any invoices. The app also allows users to easily set up donations using the "Love Code" feature, making it more convenient to donate invoices while making purchases. Furthermore, the app automatically updates the latest winning numbers for the unified invoice lottery, allowing users to check their invoices offline without an internet connection.