When your customer makes an appointment, he or she will always be asked to enter his or her name and email address. That basic information is always required to make an appointment. However, you may want to know a bit more about the person making an appointment to help you prepare for that appointment or to decide if you will accept that reservation. To do so, you can add additional fields to each planner. When the customer makes an appointment through your planner, that information will be collected on your behalf.
Note that you’ll be subject to the GDPR, meaning that you are only allowed to collect the information if you have proper reasons to do so, but this also applies when people make appointments with you by any other means.