How to add RSVP dynamic fields via API?

In the allowGuestInEventAPI method, it is now possible to add all fields of the RSVP form, even the dynamic fields manually created. You can simply add those fields to the body of your API call.

In order to know the name of the field that should be sent in the API request, you can check them in the RSVP form when selecting the field:

Please note that the fields of type location and list are not possible to be sent via the API. To learn more about the Virtual Events APIs, check out this help center article.