# User email is required

**URL:** <https://devforum.zoom.us/t/user-email-is-required/12884>\
**Category:** Web\
**Created:** [April 13, 2020, 10:17am UTC](https://devforum.zoom.us/t/user-email-is-required/12884 "2020-04-13T10:17:38Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![blr](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/blr/32/5079_2.png) [@blr](https://devforum.zoom.us/u/blr)\
**Post date:** [April 13, 2020, 10:17am UTC](https://devforum.zoom.us/t/user-email-is-required/12884/1 "2020-04-13T10:17:38Z")

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**Description**  
I have registration required off in Webinar, but the CDN Sample web is showing this error.

 ![zoom](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/2X/9/9d678d3a8aa127d46ad44bbb843c8e87c51b3686.png)

Zoom: 1.7.5

Could someone help me on this?

Thanks  
BLR

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<div class="post-metadata">

**Author:** ![michael\_p.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/michael_p.zoom/32/18105_2.png) [@michael\_p.zoom](https://devforum.zoom.us/u/michael_p.zoom)\
**Post date:** [April 14, 2020, 5:34am UTC](https://devforum.zoom.us/t/user-email-is-required/12884/2 "2020-04-14T05:34:34Z")

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Hi @blr,

To join a webinar, you would need to include an email for the userEmail property within the ZoomMtg.join function.  
Please see this document here - [https://marketplace.zoom.us/docs/sdk/native-sdks/web/essential/start-join-meeting](https://marketplace.zoom.us/docs/sdk/native-sdks/web/essential/start-join-meeting).

Thanks

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<div class="post-metadata">

**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, 8:28pm UTC](https://devforum.zoom.us/t/user-email-is-required/12884/3 "2020-08-21T20:28:52Z")

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Closed on August 21, 2020, 8:28pm UTC