Since October 2020, SBB has been gradually inviting its existing suppliers to register on SAP Ariba. You will receive the invitation by e-mail. The registration with SBB on SAP Ariba currently has no influence on the way in which ordering and invoicing processes are dealt with (a separate connection via Ariba is necessary for this). However, it is used for supplier management. In future, you will therefore be able to update your contact details independently and benefit from having an overview of calls for tenders to which you have been invited.