Allow widget for rescheduling an appointment

[wise-cheng]

I am building out a mobile only SMS- based service (salon/day care/dog care) app. Current use case for the widget is only for creating new appointments, which works great with a default workflow to send the invitee a confirmation email with links to reschedule or cancel the appointment. However, to reschedule or cancel an appointment, the invitee needs to have a daySchedule account, and most invitee will not be comfortable with. I have the following questions:

1. Can the widget be configured so that email is optional? I am using SMS based communication only via Twilio, as most small business owners may not have a business email.
2. Is there a way to have the reschedule/cancel links embedded with the appointment/booking/invitee ids, and have the widget pre-populated with the appointment details, allowing the invitee to change or cancel the appointment?

Notes:

1. I do recognize this may compromise security as anyone with the links will be able to make changes.
2. I have not tested with other workflows so may be there is one that will do the above.