出差人必看！铁路电子发票高频问答来了及操作指南

Group 1 - The article discusses the process of issuing electronic invoices for train tickets purchased through the railway 12306 platform, highlighting the ease of obtaining invoices at any train station ticket window [4][5] - It clarifies that electronic invoices cannot be issued for cross-border tickets, and passengers must obtain paper reimbursement certificates instead [6] - For group tickets, the article states that only the purchaser can apply for electronic invoices, and new services have been introduced to facilitate group ticket purchases and invoice requests [7] Group 2 - The article provides a step-by-step guide for individuals to issue electronic invoices through the railway 12306 app, including selecting trips and submitting invoice information [11][12][14] - It mentions that electronic invoices are available in PDF and OFD formats, with XML format accessible via the personal income tax app [8] - The article emphasizes the importance of tax classification codes for different types of construction services when issuing invoices [26][27]