# Clarification on close\_registration Setting in Zoom Webinars API

**URL:** <https://devforum.zoom.us/t/clarification-on-close-registration-setting-in-zoom-webinars-api/121671>\
**Category:** API and Webhooks\
**Created:** [November 29, 2024, 9:31am UTC](https://devforum.zoom.us/t/clarification-on-close-registration-setting-in-zoom-webinars-api/121671 "2024-11-29T09:31:22Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![RamF](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/ramf/32/65204_2.png) [@RamF](https://devforum.zoom.us/u/RamF)\
**Post date:** [November 29, 2024, 9:31am UTC](https://devforum.zoom.us/t/clarification-on-close-registration-setting-in-zoom-webinars-api/121671/1 "2024-11-29T09:31:22Z")

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Hi,

We use Zoom Webinars and typically open webinars via API calls. There is a setting in the API documentation called `close_registration` that can be set to either `true` or `false`:

- When set to `true`, once the webinar has started, no one can register or join the session, resulting in the error `[3072] Registration is closed`.

- When set to `false`, participants can register and join the session even after the webinar has started without any issues.

This setting was previously also available in the Zoom UI. However, I recently noticed that the setting has been removed from the UI, and in the API documentation, the `close_registration` parameter is now marked as deprecated.

Despite being marked as deprecated, it still appears to function when used in API calls.

We would like clarification on the following points:

1. Why was this important setting deprecated?
2. How long will this setting continue to work via API calls?
3. Is there any alternative method to control this behavior without requiring us to time API calls to manage registration types?
4. What is the default behavior now? For instance, will newly created webinars allow participants to register and join the session even after it has started?

This functionality is crucial for our operations, and any guidance on how to manage this moving forward would be greatly appreciated.

Thank you,  
Ram

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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 3, 2025, 1:08am UTC](https://devforum.zoom.us/t/clarification-on-close-registration-setting-in-zoom-webinars-api/121671/2 "2025-12-03T01:08:07Z")

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Closed on December 3, 2025, 1:08am UTC

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