# Zoom Webinar Capacity Limit Error

**URL:** <https://devforum.zoom.us/t/zoom-webinar-capacity-limit-error/71849>\
**Category:** Webinars\
**Tags:** webinar\
**Created:** [July 8, 2022, 2:04am UTC](https://devforum.zoom.us/t/zoom-webinar-capacity-limit-error/71849 "2022-07-08T02:04:35Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![kubotdai](https://avatars.discourse-cdn.com/v4/letter/k/d07c76/32.png) [@kubotdai](https://devforum.zoom.us/u/kubotdai)\
**Post date:** [July 8, 2022, 2:04am UTC](https://devforum.zoom.us/t/zoom-webinar-capacity-limit-error/71849/1 "2022-07-08T02:04:35Z")

</div>

I first customized the webinar.  
「Restrict number of registrants」

> **[Customizing webinar registration](https://support.zoom.us/hc/en-us/articles/202835649-Customizing-webinar-registration)**
>
> You can customize the registration process for webinars, such as approving attendees, enabling email notifications for registrations, adding a tracking pixel, and adding registration questions.
> You...

I then ran the API(webinarRegistrantCreate).

> **[Zoom Meeting API](https://marketplace.zoom.us/docs/api-reference/zoom-api/methods/#operation/webinarRegistrantCreate)**
>
> The Zoom Meeting APIs let developers to access information from Zoom. You can use this API to build private services or public applications on the Zoom App Marketplace. To learn how to get your credentials and create private/p...

I was expecting an error.  
However, it was different from the expected value.

Expected  
Error Code:3000  
You have reached the limit for the number of attendees you can add. Contact Zoom Support for more infomation.

Result  
code:3072  
Closed to the public

What are the conditions under which a response code 3072 is returned?  
I want to detect only the capacity limit(Restrict number of registrants) when executing the API(webinarRegistrantCreate).

Pardon my broken English.

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<div class="post-metadata">

**Author:** ![elisa.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/elisa.zoom/32/47836_2.png) [@elisa.zoom](https://devforum.zoom.us/u/elisa.zoom)\
**Post date:** [July 11, 2022, 10:58pm UTC](https://devforum.zoom.us/t/zoom-webinar-capacity-limit-error/71849/2 "2022-07-11T22:58:26Z")

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Hi @kubotdai  
Thanks for reaching out to the Zoom Developer Forum, I am happy to help here!  
I tried replicating this issue on my end but I am not able to.  
Once I reached the limit of the numbers of attendees, I got the following:

{  
“code”: 3072,  
“message”: “Registration is closed.”  
}

---

<div class="post-metadata">

**Author:** ![kubotdai](https://avatars.discourse-cdn.com/v4/letter/k/d07c76/32.png) [@kubotdai](https://devforum.zoom.us/u/kubotdai)\
**Post date:** [July 12, 2022, 2:35am UTC](https://devforum.zoom.us/t/zoom-webinar-capacity-limit-error/71849/3 "2022-07-12T02:35:50Z")

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Hi @elisa.zoom

Thank you for your reply.

My apologies for the confusion.  
My English translation of the message(Closed to the public) was wrong.  
As you say, the correct response message is “Registration is closed.”.

What I want to know is why code 3072 is responded instead of code 3000.  
When the reached the limit of the numbers of attendees, it was expected that the response would be as follows, but it was not.  
What are the conditions that respond as follows?

{  
“code”: 3000,  
“message”: “You have reached the limit for the number of attendees you can add. Contact Zoom Support for more infomation.”  
}

Also, are there any conditions other than limiting the number of webinar registrants that are responded as follows?

{  
“code”: 3072,  
“message”: “Registration is closed.”  
}

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<div class="post-metadata">

**Author:** ![elisa.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/elisa.zoom/32/47836_2.png) [@elisa.zoom](https://devforum.zoom.us/u/elisa.zoom)\
**Post date:** [July 12, 2022, 1:12pm UTC](https://devforum.zoom.us/t/zoom-webinar-capacity-limit-error/71849/4 "2022-07-12T13:12:31Z")

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Hey @kubotdai  
Thanks for the clarification.  
Let me reach out to our Documentation team to confirm this and I will update you shortly!  
Cheers,  
Elisa

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<div class="post-metadata">

**Author:** ![elisa.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/elisa.zoom/32/47836_2.png) [@elisa.zoom](https://devforum.zoom.us/u/elisa.zoom)\
**Post date:** [July 13, 2022, 8:44pm UTC](https://devforum.zoom.us/t/zoom-webinar-capacity-limit-error/71849/5 "2022-07-13T20:44:27Z")

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Hi @kubotdai

I did some more testing on my end and it looks like the following error:

{  
“code”: 3000,  
“message”: “You have reached the limit for the number of attendees you can add. Contact Zoom Support for more infomation.”  
}

Is about the number of attendees that you can add to a Webinar, according to the License that you might have:

 ![Screen Shot 2022-07-13 at 4.38.54 PM](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/4/d/4db84fab81021e96a6556d4d6ddcae6de5c9b319.png)

Learn more about different licenses here:

> **[Video Conferencing, Web Conferencing, Webinars, Screen Sharing](https://zoom.us/pricing/events)**
>
> Zoom is the leader in modern enterprise video communications, with an easy, reliable cloud platform for video and audio conferencing, chat, and webinars across mobile, desktop, and room systems. Zoom Rooms is the original software-based conference...

Now, the expected error when adding more registrants/attendees to a webinar (after you restricted the number of registrants) is correct:  
{  
“code”: 3072,  
“message”: “Registration is closed.”  
}

Hope this helps clarifying.  
Best,  
Elisa