# trigger when inviation Panelists

**URL:** <https://devforum.zoom.us/t/trigger-when-inviation-panelists/135558>\
**Category:** Webinars\
**Tags:** webhooks\
**Created:** [July 22, 2025, 12:56pm UTC](https://devforum.zoom.us/t/trigger-when-inviation-panelists/135558 "2025-07-22T12:56:05Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Hi\_n](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/hi_n/32/49432_2.png) [@Hi\_n](https://devforum.zoom.us/u/Hi_n)\
**Post date:** [July 22, 2025, 12:56pm UTC](https://devforum.zoom.us/t/trigger-when-inviation-panelists/135558/1 "2025-07-22T12:56:05Z")

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I need find a trigger webhook get information when add panelist in to webinar.  
I use it to send custom email to panelist

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**Author:** ![expertswho](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/expertswho/32/60945_2.png) [@expertswho](https://devforum.zoom.us/u/expertswho)\
**Post date:** [July 22, 2025, 1:28pm UTC](https://devforum.zoom.us/t/trigger-when-inviation-panelists/135558/2 "2025-07-22T13:28:50Z")

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hi @Hi_n  
welcome to the community.

In the appsdk there is an on changewebhook.  
[OnParticipantChangeEvent | @zoom/appssdk - v0.16.32](https://appssdk.zoom.us/types/ZoomSdkTypes.OnParticipantChangeEvent.html)

You are going to have to match up the inmeeting credentials with their email.

I am assumiung this will all work in webinar. My apps have so far only worked wihtin Zoom meetings.  
You would need to be a Zoom marketplace style app running for a user wihtin the webinar. Probably co-host will be needed.

Hope that gives you a direction

All the best

John

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**Author:** ![elisa.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/elisa.zoom/32/47836_2.png) [@elisa.zoom](https://devforum.zoom.us/u/elisa.zoom)\
**Post date:** [July 22, 2025, 6:39pm UTC](https://devforum.zoom.us/t/trigger-when-inviation-panelists/135558/3 "2025-07-22T18:39:41Z")

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Hey @Hi_n  
Adding to whay John shared, here is the link to our docs on all the webhooks available for webinars:

> **[Meetings Webhooks](https://developers.zoom.us/docs/api/meetings/events/#tag/webinar)**
>
> The Zoom Meeting webhooks allow developers to receive events for Zoom Meetings and Webinars.

We do not have a specific webhook for panelists