Webinar Promotional Source Links for API Integration

We are using the registration webhook and would like to pull in fields for promotional source links. Is this part of the data payload sent in the webhook? For example, a user registers for a webinar through a custom source link provided in the platform labeled “Facebook” (https://XXX.zoom.us/webinar/register/XXXXXXXXXXXXX/WN_t6bik3raSH2bpfNzdgznkw). How can we identify using the webhook that this registrant came from our “Facebook” source link?

Thank you in advance!


Hi @community3,

Thanks for your question. When you make a request to add a registrant, the API responds with a registrant_id for each one. This is also sent in the webhook event and can be matched by requesting all meeting registrants with this API: Zoom Meeting API