Group 1 - The article discusses the process of setting up an email for tax invoice delivery, emphasizing the importance of entering the correct email account and authorization code [4][5]. - It highlights that if the taxpayer has not set up the email delivery information, the system will prompt them to do so, guiding them through the necessary steps [5]. - The article provides a reminder that the platform is unofficial and serves as a learning resource, indicating that the content is for educational purposes only [8].