Improve Webhooks to allow custom field data to be sent#1543

I want to send the custom field data in the webhook so that I can then use it in Google Calendar or to post upcoming events that people book on Facebook etc. As customer pick 3 options for a class that other people can then join I’d need to be include the first customers booking details. It is possible to do with an email parser via Zapier, but it would simplify the process if custom field data could just be sent in the webhooks.