If you're having trouble logging into your company's Trainline Business account using Single Sign-On (SSO), it could be due to one of the following reasons: 


1. Not Yet Invited to Your Company Account 

If you haven't been invited to join your company's Trainline Business account yet, you'll need to reach out to your company administrator to request an invitation. They can send you an invite to join your company account. 


2. Pending Invitation 

You may already have received an invitation, but not created your account. Double-check your email inbox (and your junk or spam folder) for an invitation to accept and complete your account setup. You will then be able to log in via SSO.  


3. Your Account Was Removed 

If you previously had an account but are no longer able to log in, your administrator may have removed you from the account. Contact your administrator to verify your account status and re-add you if necessary. 


4. Your Company is Not Set Up with SSO 

If your company has not yet set up Single Sign-On (SSO), you won't be able to log in this way. Please reach out to your administrator to confirm whether SSO is enabled for your company account. 


If none of the above solutions resolve the issue, please contact Trainline Business Support for further assistance.