Guaranteed revenue at electronic ticket issuance and modification

摘要

The invention relates to a method for automatically checking revenue in connection with transportation ticket purchases such as airline tickets. A request for issuance or follow-up processing of the ticket is received at an E-ticket server, said request comprising the fare data of the journey. A real time check is then performed so that a fare check status of at least some of the data of the fare data of the ticket is returned.