For airport transfer , we have given vehicle type as attribute. Since a person could select anything between a sedan , suv or a mini van , we can't  make any of them mandatory. So a person can simply go to the booking screen without selecting any of them.
Is there any way making a person select at least one of the 3 given options?


  • Hi Harmeet,

    Thank you for reaching out on our forum!

    I would recommend setting up the option as child items of the main rental item, rather than parameters. Then on the booking screen they would need to select one of the options in order to proceed. 

    I hope this helps, but if you would like further assistance, please reach out to so that we can further investigate your configuration and provide more tailored support.

    Best Regards,

    Checkfront Support Team
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