# Id missing for participants list

**URL:** <https://devforum.zoom.us/t/id-missing-for-participants-list/34650>\
**Category:** API and Webhooks\
**Created:** [October 29, 2020, 3:14pm UTC](https://devforum.zoom.us/t/id-missing-for-participants-list/34650 "2020-10-29T15:14:32Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![phil.mcparlane](https://avatars.discourse-cdn.com/v4/letter/p/258eb7/32.png) [@phil.mcparlane](https://devforum.zoom.us/u/phil.mcparlane)\
**Post date:** [October 29, 2020, 3:14pm UTC](https://devforum.zoom.us/t/id-missing-for-participants-list/34650/1 "2020-10-29T15:14:33Z")

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**Description**  
When I call the `/metrics/meetings/XXX/participants` endpoint, I get a list of participants. Each of them has a `user_id` (int) column and an `id` column.

Unfortunately many of `id`s are empty as the user didn’t login to zoom when they joined the meeting.

In this case is there any way to get the users email? How can I get more information for my participant when they have a `user_id` but no `id`? When I search `/users/{user_id}` for one of these participants I get ‘User does not exist’

**Error**  
User does not exist

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

**Which Endpoint/s?**  
[https://marketplace.zoom.us/docs/api-reference/zoom-api/reports/reportmeetingparticipants](https://marketplace.zoom.us/docs/api-reference/zoom-api/reports/reportmeetingparticipants)  
[https://marketplace.zoom.us/docs/api-reference/zoom-api/users/user](https://marketplace.zoom.us/docs/api-reference/zoom-api/users/user)

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**Author:** ![will.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/will.zoom/32/14417_2.png) [@will.zoom](https://devforum.zoom.us/u/will.zoom)\
**Post date:** [October 30, 2020, 7:50pm UTC](https://devforum.zoom.us/t/id-missing-for-participants-list/34650/2 "2020-10-30T19:50:03Z")

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Hi @phil.mcparlane,

Thanks for joining our developer community!

To clarify, if a user was not authenticated/didn’t log in when they attended a meeting, it’s not possible to access their Zoom User ID or email, as these are not provided for guests in order to protect their personally identifiable information.

While I’m afraid it’s not possible to retrieve these details unless the user is authenticated, I do hope this helps to clarify.

Best,  
Will

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**Author:** ![phil.mcparlane](https://avatars.discourse-cdn.com/v4/letter/p/258eb7/32.png) [@phil.mcparlane](https://devforum.zoom.us/u/phil.mcparlane)\
**Post date:** [November 20, 2020, 3:42pm UTC](https://devforum.zoom.us/t/id-missing-for-participants-list/34650/3 "2020-11-20T15:42:29Z")

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No worries, thanks Will

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**Author:** ![will.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/will.zoom/32/14417_2.png) [@will.zoom](https://devforum.zoom.us/u/will.zoom)\
**Post date:** [November 23, 2020, 4:19pm UTC](https://devforum.zoom.us/t/id-missing-for-participants-list/34650/4 "2020-11-23T16:19:17Z")

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Glad I could help clarify, @phil.mcparlane 🙂

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**Author:** ![system](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/6/1/614bdd549b610bbaa46ff934617683a02bdaa03c.png) [@system](https://devforum.zoom.us/u/system)\
**Post date:** [December 24, 2020, 2:19am UTC](https://devforum.zoom.us/t/id-missing-for-participants-list/34650/5 "2020-12-24T02:19:19Z")

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Closed on December 24, 2020, 2:19am UTC

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