1. Add "catering service" to the invoice name, set the tax rate to 6% (3% for small scale), and click Save.

2. Click the generate invoice code, enter the invoice amount, and print out the QR code receipt to the consumer. Consumers can issue invoices at any time by scanning the QR code on the receipt when they leave the store with the receipt.

3. The invoice opened by the customer with WeChat scan code will be saved in the mobile phone WeChat card package, the invoice opened with Alipay scan code will be saved in the Alipay card package, and the electronic invoice will also be sent to the mailbox filled by the customer.