# Participant registration in webinar causing some issue

**URL:** <https://devforum.zoom.us/t/participant-registration-in-webinar-causing-some-issue/81053>\
**Category:** Webinars\
**Tags:** api\
**Created:** [January 6, 2023, 10:51am UTC](https://devforum.zoom.us/t/participant-registration-in-webinar-causing-some-issue/81053 "2023-01-06T10:51:25Z")\
**Posts on this page:** 6\
**Page:** 1

<div class="post-metadata">

**Author:** ![largeclass](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/largeclass/32/44238_2.png) [@largeclass](https://devforum.zoom.us/u/largeclass)\
**Post date:** [January 6, 2023, 10:51am UTC](https://devforum.zoom.us/t/participant-registration-in-webinar-causing-some-issue/81053/1 "2023-01-06T10:51:25Z")

</div>

**API Endpoint(s) and/or Zoom API Event(s)**  
url- [https://api.zoom.us/v2/webinars/96973240175/batch\_registrants](https://api.zoom.us/v2/webinars/96973240175/batch_registrants)  
body - {  
“auto\_approve”: true,  
“registrants”: [  
{  
“email”: “[jchill@example.com](mailto:jchill@example.com)”,  
“first\_name”: “Jill”,  
“last\_name”: “Chill”  
}  
]  
}

**Description**  
Getting error message while adding registrant in the meeting.  
Account type - Business

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

**How To Reproduce**  
Simply add any new participant in this webinar and you will get the above error.

---

<div class="post-metadata">

**Author:** ![freelancer.nak](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/freelancer.nak/32/40968_2.png) [@freelancer.nak](https://devforum.zoom.us/u/freelancer.nak)\
**Post date:** [January 6, 2023, 10:56am UTC](https://devforum.zoom.us/t/participant-registration-in-webinar-causing-some-issue/81053/2 "2023-01-06T10:56:16Z")

</div>

@largeclass Hope you will be fine.

Are you following

- Rate Limit 👇 10 req/sec with Pro Plan & 40 req/sec with Bus+

> [@largeclass](#):
>
> **API Endpoint(s) and/or Zoom API Event(s)**  
> url- [https://api.zoom.us/v2/webinars/96973240175/batch\_registrants](https://api.zoom.us/v2/webinars/96973240175/batch_registrants)

- Use this API to register up to 30 registrants at once for a scheduled webinar that requires [registration](https://support.zoom.us/hc/en-us/articles/204619915-Scheduling-a-webinar-with-registration).

Please reply if any query still. Thanks

---

<div class="post-metadata">

**Author:** ![largeclass](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/largeclass/32/44238_2.png) [@largeclass](https://devforum.zoom.us/u/largeclass)\
**Post date:** [January 6, 2023, 11:02am UTC](https://devforum.zoom.us/t/participant-registration-in-webinar-causing-some-issue/81053/3 "2023-01-06T11:02:58Z")

</div>

Yes i’m following 10 request / sec rate limit although i’ve business account.

But i’ve got this issue for a single request as well.

---

<div class="post-metadata">

**Author:** ![freelancer.nak](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/freelancer.nak/32/40968_2.png) [@freelancer.nak](https://devforum.zoom.us/u/freelancer.nak)\
**Post date:** [January 6, 2023, 11:06am UTC](https://devforum.zoom.us/t/participant-registration-in-webinar-causing-some-issue/81053/4 "2023-01-06T11:06:53Z")

</div>

@largeclass what limit you have with Webinar Registrants?

 ![Screenshot 2023-01-06 at 4.06.10 PM](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/1/b/1b54615c7d5b5eeeab72dbb51342683359add69d.png)

---

<div class="post-metadata">

**Author:** ![freelancer.nak](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/freelancer.nak/32/40968_2.png) [@freelancer.nak](https://devforum.zoom.us/u/freelancer.nak)\
**Post date:** [January 6, 2023, 11:09am UTC](https://devforum.zoom.us/t/participant-registration-in-webinar-causing-some-issue/81053/5 "2023-01-06T11:09:45Z")

</div>

Once you face code:3000 then please try to request ` /webinars/{webinarId}/registrants` and compare your limit and registrants count and calculate if is there any registrant limit available or not.

Possible code:3000 in response

 ![Screenshot 2023-01-06 at 4.08.00 PM](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/f/a/fa207f31a2c7a3a0d502dc75d52eb34f5bddad12.png)

---

<div class="post-metadata">

**Author:** ![largeclass](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/largeclass/32/44238_2.png) [@largeclass](https://devforum.zoom.us/u/largeclass)\
**Post date:** [January 6, 2023, 11:43am UTC](https://devforum.zoom.us/t/participant-registration-in-webinar-causing-some-issue/81053/6 "2023-01-06T11:43:36Z")

</div>

@freelancer.nak We have limit of 500 attendees but not on number of registrants and also when creating webinar we are giving registrants\_restrict\_number = 0 so that there is no limit(max - 20000 as per zoom) in number of registrations via API. Also we are unable to register in webinar having 0 registrants.