Someone else helped me buy tickets online. Do I need to edit the digital SMS and send it to the designated number?

Need. You need someone to send a text message to the designated number to verify your identity.

1. Open Railway 12306app, click "My" in the lower right corner, and click "Passengers" at the top of the interface.

2. Click on the passenger information to be verified to enter the passenger editing page.

3. Click the "mobile phone number" position and enter the passenger's mobile phone number (if this step is omitted).

4. Click "Next" to jump to the SMS verification page.

5. According to the page prompts, copy the SMS content within 30 minutes, open the SMS application, and click "Add SMS".

6. Fill in 12306 at the receiving end, paste the copied content in the short message, and click "Send" to complete the verification.