After enable Waitlist, you may create Waitlist by below steps:
inline App > Book > Waitlist > Slide to Add
If you want to check the waitlist, you may check the grey sign in the time bar
Caution:
Please confirm customer's email and phone number are correctThe waitlist customer is not a reservation yet, only an email will be sent out first, and if you convert the patron as a reservation, the customer will receive an email notification