# What is the difference between id and user\_id

**URL:** <https://devforum.zoom.us/t/what-is-the-difference-between-id-and-user-id/12681>\
**Category:** API and Webhooks\
**Created:** [April 11, 2020, 1:51pm UTC](https://devforum.zoom.us/t/what-is-the-difference-between-id-and-user-id/12681 "2020-04-11T13:51:12Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![sameer](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/sameer/32/5433_2.png) [@sameer](https://devforum.zoom.us/u/sameer)\
**Post date:** [April 11, 2020, 1:51pm UTC](https://devforum.zoom.us/t/what-is-the-difference-between-id-and-user-id/12681/1 "2020-04-11T13:51:12Z")

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**Description**  
I am trying to understand json data received from hook. Attached the json received for participant\_left

1. What are the id and user\_id in object-\>participant
2. Are above ids fixed all time?
3. Is entire meeting start data is duplicated? If so then is there any benefit of tracking meeting\_start/meeting\_end data? As will get all info using participant joined and left events.
4. what is uuid?
5. what is account id?

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

**Which Endpoint/s?**  
definition of data passed json  
{  
“event”: “meeting.participant\_joined”,  
“payload”: {  
“object”: {  
“id”: “212996017”,  
“type”: 2,  
**"uuid": “4Qa/rGoiTsdas==”,**  
“topic”: “Learning Workshop”,  
“host\_id”: “jiCBdpYcxzcsd”,  
“duration”: 90,  
“timezone”: “Asia/Kolkata”,  
“start\_time”: “2020-04-11T05:24:56Z”,  
“participant”: {  
**"id": “jiCBdpYpRnuesdfsdfssssuNMg”,**  
\*\* “user\_id”: “16732320”,\*\*  
“join\_time”: “2020-04-11T05:24:47Z”,  
“user\_name”: “Stratbeans Consulting”  
}  
},  
“account\_id”: “Q\_ryUsdfsdfw3Q”  
}  
}

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**Author:** ![bdeanindy](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/bdeanindy/32/154_2.png) [@bdeanindy](https://devforum.zoom.us/u/bdeanindy)\
**Post date:** [April 11, 2020, 5:40pm UTC](https://devforum.zoom.us/t/what-is-the-difference-between-id-and-user-id/12681/2 "2020-04-11T17:40:25Z")

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`participant.id` === if participant is a registered Zoom User, it is that user’s ID (if they’re logged into Zoom, IIRC)

`participant.user_id` === participant’s unique identifier for this specific single meeting (this may display as a phone number for dial-in users)

I found some related information in this post that might be helpful: [Unable to map meeting registrant id with live participant id](https://devforum.zoom.us/t/unable-to-map-meeting-registrant-id-with-live-participant-id/6862)

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**Author:** ![sameer](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/sameer/32/5433_2.png) [@sameer](https://devforum.zoom.us/u/sameer)\
**Post date:** [April 12, 2020, 6:22am UTC](https://devforum.zoom.us/t/what-is-the-difference-between-id-and-user-id/12681/3 "2020-04-12T06:22:46Z")

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Thanks bdeanindy.  
What is meeting type? I always see it to be 2. Are there other types?

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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 13, 2021, 6:33pm UTC](https://devforum.zoom.us/t/what-is-the-difference-between-id-and-user-id/12681/4 "2021-05-13T18:33:17Z")

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Meeting type definitions can be seen here: [https://marketplace.zoom.us/docs/api-reference/zoom-api/meetings/meetingcreate](https://marketplace.zoom.us/docs/api-reference/zoom-api/meetings/meetingcreate)

![Screen Shot 2021-05-13 at 12.32.58 PM](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/5/4/542beeb7165cd339d78c7f1ef7046988d9454b07.png)

-Tommy

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<div class="post-metadata">

**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 13, 2021, 6:33pm UTC](https://devforum.zoom.us/t/what-is-the-difference-between-id-and-user-id/12681/5 "2021-05-13T18:33:19Z")

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Closed on May 13, 2021, 6:33pm UTC