If you are unable to download a ticket purchased online using the download link shown to you on the website, you can click on the download link in your confirmation e-mail and download it there. If you have not received an e-mail, make sure you entered your e-mail address correctly and check the confirmation e-mail isn’t in your spam folder.
If you are logged in on sbb.ch/en/business, you will find the ‘Orders’ option in the menu in the top right. Select the relevant ticket there. You can open and download it again at any time.