Group 1 - The article provides a detailed guide on how to issue invoices for transportation services through the electronic tax bureau, outlining two methods: specific business method and general method [2][3][13]. - For the specific business method, users must log in, select the type of invoice, and fill in specific transportation details such as vehicle type and route [6][9][11]. - The general method allows users to issue invoices without selecting a specific business, but still requires similar details to be filled in for transportation services [13][17][18]. Group 2 - The article mentions that taxpayers who have not incurred stamp duty obligations can use the electronic tax bureau's "one-click zero declaration" feature to complete their tax declaration [25][28]. - It emphasizes the importance of confirming that no stamp duty obligations have occurred before submitting the declaration [29].