This API is subject to change. Bug fixes and new features will be released based on developer feedback throughout the preview period.
Updates the number of participants for a booking.
You can only update the number of participants for class and course bookings, you can't update it for appointment bookings.
Calling this method also changes the
session's
totalNumberOfParticipants.
When updating the number of participants for a booking you must pass either
participantsChoices or totalParticipants. If you pass participantsChoices
for services that have variants,
all of the provided choices must exist for the service. Otherwise, the
call returns an INVALID_SERVICE_CHOICES error.
You can only call this method when authenticated as a Wix app or Wix user identity.
ID of the booking to update the number of participants for.