Correction of Passenger Date of Birth on Ticket

Jaithoangou32

Hello,

I recently purchased tickets for the journey from Paris-Est to Lauterbrunnen on 09 October 2025 (Order No. •••••••••••••).
However, I noticed that the date of birth for one passenger is incorrect. Could you please advise if this needs to be corrected for the ticket to be valid, and if so, how I can update it?
The ticket was purchased at the standard adult fare, without any age-based discount.

Thank you in advance for your help.

RolandP

Hello Jaithoangou32

We cannot answer the question without exactly knowing the error. Please specify if you want a reliable answer. Thank you.

We are not the SBB Customer service; therefore, we cannot access your order but can still advise on the mistake.

Kind regards,
Roland