You can start using eventAttendanceMode While It is really still pending on schema.org. Here is an example of an event that's only occurring online: The event is postponed into a later on date, even so the date is just not recognized but. Hold the initial date while in the startDate https://socialaffluent.com/story4930278/the-smart-trick-of-prestashop-cookie-consent-banner-that-no-one-is-discussing