Group 1 - The article discusses various scenarios related to invoice verification and processing in the tax system [4][5][6] - It emphasizes the importance of checking the accuracy of invoice details such as taxpayer identification number and name [4] - The article outlines specific steps for handling agricultural product invoices and correcting any misoperations related to invoice deductions [5][6] Group 2 - The content is sourced from the Shanxi Taxation Bureau's promotional materials, indicating a focus on taxpayer education and interaction [8][11] - It encourages users to engage with the tax system through a digital platform for better service and satisfaction [11]