The train ticket bought by Tongcheng has sent me a text message telling me the ticket number. Does it mean that the ticket was issued successfully?

Just pick up the tickets on time.

After purchasing tickets at 12306.cn, if you need to exchange paper tickets, please do it in the following ways: (1) If you use your resident ID card to purchase tickets, you can go to the ticket window of the station, the railway sales point or the automatic ticket vending machine with the original valid resident ID card of the passenger used when purchasing tickets. (2) If the resident ID card can't be read automatically or other valid ID cards other than the resident ID card can be used to purchase tickets, please show the original valid ID card of the passenger and the order number (E+9 digits) used when purchasing tickets, go to the ticket window of the station or the railway sales point authorized by the railway transportation enterprise, and the ticket seller will enter the ID number and order number and verify them before handling. (3) When purchasing a student ticket, please show your valid ID card, student ID card and student train ticket discount card (both originals) and go to the station ticket window or railway sales point where the student train ticket discount card identifier is installed. (4) If you need to buy a ticket for disabled soldiers, please bring your valid ID card, People's Republic of China (PRC) disabled soldiers Card and People's Republic of China (PRC) Disabled People's Police Card (both originals) to the ticket window of the station where the discount card identifier is installed. (5) If the valid ID information is inconsistent with the order number, the ticket cannot be exchanged. For student tickets and disabled soldiers tickets, check the discount (to be paid) voucher at the same time. Student tickets will also reduce the number of preferential rides.