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.
This function requires elevated permissions and runs only on the backend and on dashboard pages.
ID of the booking to update the number of participants for.
This method doesn’t return any custom errors, but may return standard errors. Learn more about standard Wix errors.