Sets a booking policy as the default.
Also updates the site's current default policy by setting its default
attribute to false. If the provided policy is already the site's
default, the call succeeds without changing any bookingPolicy object.
This method may require higher-level permissions than the caller has, based on their identity and roles and permissions. In these cases, you can ensure the method is called with the required level of authorization by using one of the following:
ID of the booking policy that's set as default.
This method doesn't return any custom errors, but may return standard errors. Learn more about standard Wix errors.