Please make sure you check with your Transportation Department to confirm the correct bus identifier. Please note, the bus you need to add will likely be different from the physical bus number your student rides. If you know your student's route number, please give that a try.
The application support team does not have any information about which bus a student rides. However, if you believe you are trying to add the correct bus and are unable to find it in the app, please click on 'Contact Support' and let us know the buses you are unable to add.