1. when you first use it, add "catering service" to the invoice name and set the tax rate at 6% (3% for small scale). click save.

2. secondly, click generate billing code, enter the billing amount, and you can print out a QR code receipt to the consumer. when the consumer leaves the store with the receipt, he can issue an invoice at any time by scanning the QR code on the receipt.

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