山西：销售方如何通过电子税务局生成二维码实现购买方扫码开票？操作步骤

Group 1 - The article discusses the process for sellers to generate QR codes for buyers to scan and issue electronic invoices through the electronic tax bureau [2][6][10] - It outlines the steps for sellers to log into the electronic tax bureau and navigate to the invoice issuance section [3][4] - The article explains two types of QR codes: the basic information QR code for entering invoice header information and the transaction information QR code for automatic invoicing [7][10] Group 2 - The basic information QR code allows buyers to input their invoice header information, which sellers can use to issue invoices within 48 hours [8][10] - The transaction information QR code enables buyers to supplement invoice header information within 72 hours for automatic invoicing [10][12] - The article emphasizes the importance of using the electronic tax bureau for efficient tax handling and invoice management [28][31]