asamake
Dear Abdoulaye,
Thank you for your patience.
We would like to inform you that our team has recently updated the Leconfe system. With this update, Conference manager can now configure several fields in the registration form to be either required or optional, including the “Family Name” field.
To configure this setting, please follow these steps:
Go to Settings -> Setup Tab -> Setup


From there, you will be able to manage which fields are required for user registration.
We hope this update helps meet your conference requirements. If you need any further assistance, please feel free to contact us.
Best regards,
Almadani
Leconfe Support Team