# Webhook data changed, has a bug been introduced?

**URL:** <https://devforum.zoom.us/t/webhook-data-changed-has-a-bug-been-introduced/15230>\
**Category:** API and Webhooks\
**Created:** [April 28, 2020, 1:24pm UTC](https://devforum.zoom.us/t/webhook-data-changed-has-a-bug-been-introduced/15230 "2020-04-28T13:24:45Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![mustentdev](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/mustentdev/32/6473_2.png) [@mustentdev](https://devforum.zoom.us/u/mustentdev)\
**Post date:** [April 28, 2020, 1:24pm UTC](https://devforum.zoom.us/t/webhook-data-changed-has-a-bug-been-introduced/15230/1 "2020-04-28T13:24:45Z")

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**Description**  
Today I found out that the data returned by webhook notifications has changed. I have discovered a difference in behavior that I wonder if it is correct or a bug has been introduced. In the case of a webinar the event name inside the RequestBody node shows the prefix “meeting” instead of “webinar”, for example what was previously “webinar.participant\_joined” has become “meeting.participant\_joined”. This way my application stopped working.  
Now I will correct the application to use the event property in the root of the object which continues to be corrected, but is this strange behavior a deliberate modification?

Below an example:

{  
applicationId: “xig–KJDRdqPCIjL-cOMUQ”,  
monitorTime: 1588076695543,  
traceId: “Webhook\_68b4ee3d5814484fb768f5d90bd2df67”,  
accountId: “5xheyz–RVS9tCjFTFX3ow”,  
event: “webinar.participant\_joined”, \<---- CORRECT  
status: “200”,  
userId: “9TWiyYXRT1y6XvyTTcYQfg”,  
url: “xxxxx/VCSPI/getzoomevent.aspx”,  
subscriptionId: “FFx\_xtGaSHG1w0sfle0jgw”,  
requestHeaders: “N/A”,  
requestBody: {  
payload: {  
account\_id: “5xheyz–RVS9tCjFTFX3ow”,  
object: {  
uuid: “35Ie743qSHaLoYX29vLjFA==”,  
participant: {  
user\_id: “33555456”,  
user\_name: “DANIELE MANFREDI”,  
id: “6uJCMeY0SCazFtS04byc4A”,  
join\_time: “2020-04-28T12:24:52Z”  
},  
id: “\*\*\*\*\*\*\*\*\*\*\*”,  
type: 5,  
topic: “Prova di recupero video produzione”,  
host\_id: “9TWiyYXRT1y6XvyTTcYQfg”,  
duration: 20,  
start\_time: “2020-04-28T12:20:18Z”,  
timezone: “Europe/Rome”  
}  
},  
event: “meeting.participant\_joined” \<---- NOT CORRECT (BUT IT WAS CORRECT UNTIL SOME TIME AGO)  
},  
responseHeaders: {  
Server: “Microsoft-IIS/8.5”,  
Content-Length: “6”,  
Date: “Tue, 28 Apr 2020 12:24:56 GMT”,  
Content-Type: “text/html; charset=utf-8”  
},  
runTime: “792”,  
ttl: 1590668698,  
requestParameters: undefined,  
responseData: undefined  
}

**Error**  
n/a

**Which App Type (OAuth / Chatbot / JWT / Webhook)?**  
Webhook

**Which Endpoint/s?**  
n/a

**How To Reproduce (If applicable)**  
Join a webinar

**Screenshots (If applicable)**  
n/a

**Additional context**  
n/a

\*This post has been edited to remove any meeting / webinar IDs

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**Author:** ![tommy](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/tommy/32/72769_2.png) [@tommy](https://devforum.zoom.us/u/tommy)\
**Post date:** [May 4, 2020, 3:46pm UTC](https://devforum.zoom.us/t/webhook-data-changed-has-a-bug-been-introduced/15230/2 "2020-05-04T15:46:19Z")

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Hey @mustentdev,

That is strange. Are you still continuing to see this issue?

Thanks,  
Tommy

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**Author:** ![DeveloperBot](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/developerbot/32/12632_2.png) [@DeveloperBot](https://devforum.zoom.us/u/DeveloperBot)\
**Post date:** [August 21, 2020, 9:01pm UTC](https://devforum.zoom.us/t/webhook-data-changed-has-a-bug-been-introduced/15230/3 "2020-08-21T21:01:49Z")

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Closed on August 21, 2020, 9:01pm UTC