A: Hello mehedi_htca,

Thank you for your question.

At this time we send only two email reminders you can set in the "edit" mode of your booking type if you want to change their timings.
TidyCal will automatically send those email reminders 24 hours before and 1 hour before the meeting, unless you do not change that cadence as mentioned above.

Sending more than that is not supported in TidyCal yet.
As we constantly work on the app improvement, we have recorded your idea in our internal documentation for potential approval and adoption some time in the future.

Have a lovely day and kind regards from the Team Originals!