Wix Bookings Request: Allowing Site Members to Add Themselves to an Appointment Waitlist on the Member Apps

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Currently, it is not possible for site members to add themselves to an appointment waitlist using the Wix member apps (Fit by Wix, Spaces by Wix). 
Workaround:
Your clients can add themselves to your appointment waitlist on desktop. 
We are always working to update and improve our products, and your feedback is greatly appreciated.