Participant Joined Webhook – Mapping user_id to registrant_id

Hey @zachw ,

Thanks for sharing the video. Are you using the Create Meeting
/Webinar Registrant API? If so, please send your request url, and request body to so we can try to reproduce the issue.


I don’t work for Jotform or Hillel. This was a just an example of an event that someone I know came across to give an example of this working without the gibberish. Are you at Zoom able to look into this to determine what they are doing to avoid this issue? Afterall, you should have access to their Zoom application and their Points of Contact.

Hey @zachw,

Thank you for the update. We don’t have access to the codebase or any other details of the web apps that developers create. The information that we have can be found by navigating to the Zoom Marketplace and filling out the details there.

With that being said, we aren’t able to share any information about the app of another customer. This is due to privacy, security and intellectual property considerations.

However, you should be able to use the Add Meeting Registrant API to accomplish the same.

Let me know if you have any questions.