SNCF Connect, formerly OUI.sncf until 25 January 2022,< a i=4>[1] is a subsidiary of SNCF that sells entry and return tickets for trains around Europe. The line has commercial relationships with major European rail operators including SNCF, Eurostar, Deutsche Bahn and Thalys, and consists of four independent companies in different geographical areas. In 2003, it was the largest French e-commerce website in terms of volume.