# 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:** 1\
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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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