# customerKey is null for attendee in Webinar

**URL:** <https://devforum.zoom.us/t/customerkey-is-null-for-attendee-in-webinar/86241>\
**Category:** Windows\
**Created:** [April 6, 2023, 10:38pm UTC](https://devforum.zoom.us/t/customerkey-is-null-for-attendee-in-webinar/86241 "2023-04-06T22:38:15Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![anonymousedge03](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/anonymousedge03/32/18582_2.png) [@anonymousedge03](https://devforum.zoom.us/u/anonymousedge03)\
**Post date:** [April 6, 2023, 10:38pm UTC](https://devforum.zoom.us/t/customerkey-is-null-for-attendee-in-webinar/86241/1 "2023-04-06T22:38:16Z")

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**Description**  
As a webinar host, when I try to get Attendee info using the command given below, I am getting all the information except customerKey.

**var user = CZoomSDKeDotNetWrap.Instance.GetMeetingServiceWrap().  
GetMeetingParticipantsController().GetUserByUserID(userId);**  
**var customerKey = user.GetCustomerKey()**

CustomerKey is always null for an attendee. All other information like name, userId is shown correctly. When I promote the attendee to Panelist then I see their customerKey correctly. If I again demote the panelist to an attendee, the customerKey becomes null. This problem is happening on both Windows and Mac Meeting SDK.

**Which Windows Meeting SDK version?**  
Mac - v5.14.0.16825  
Windows C# - v5.14.0.13926

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<div class="post-metadata">

**Author:** ![anonymousedge03](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/anonymousedge03/32/18582_2.png) [@anonymousedge03](https://devforum.zoom.us/u/anonymousedge03)\
**Post date:** [April 10, 2023, 8:32am UTC](https://devforum.zoom.us/t/customerkey-is-null-for-attendee-in-webinar/86241/2 "2023-04-10T08:32:59Z")

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Any update on this issue?

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<div class="post-metadata">

**Author:** ![anonymousedge03](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/anonymousedge03/32/18582_2.png) [@anonymousedge03](https://devforum.zoom.us/u/anonymousedge03)\
**Post date:** [April 26, 2023, 6:11am UTC](https://devforum.zoom.us/t/customerkey-is-null-for-attendee-in-webinar/86241/3 "2023-04-26T06:11:43Z")

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any update on this issue?

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<div class="post-metadata">

**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:** [May 26, 2023, 4:12pm UTC](https://devforum.zoom.us/t/customerkey-is-null-for-attendee-in-webinar/86241/4 "2023-05-26T16:12:15Z")

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Closed on May 26, 2023, 4:12pm UTC

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