Deprecation Notice
This method has been replaced with RSVP V2's Check In RSVP Guests and will be removed on June 30, 2025. If your app uses this method, we recommend updating your code as soon as possible.
Checks-in an RSVP.
You can only call this method when authenticated as a Wix app or Wix user identity.
This method doesn’t return any custom errors, but may return standard errors. Learn more about standard Wix errors.