# Api issue (error 2016)

**URL:** <https://devforum.zoom.us/t/api-issue-error-2016/104395>\
**Category:** API and Webhooks\
**Tags:** api\
**Created:** [February 22, 2024, 1:35pm UTC](https://devforum.zoom.us/t/api-issue-error-2016/104395 "2024-02-22T13:35:10Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![abdolrezarostamian](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/abdolrezarostamian/32/56877_2.png) [@abdolrezarostamian](https://devforum.zoom.us/u/abdolrezarostamian)\
**Post date:** [February 22, 2024, 1:35pm UTC](https://devforum.zoom.us/t/api-issue-error-2016/104395/1 "2024-02-22T13:35:10Z")

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Hello,

We are experiencing a connection issue with one of our music classes on our website, which is integrated with the Zoom API for our online lessons. Initially, we encountered error 500. We are facing an error message, which advises us to contact Zoom customer support for assistance. Can you assist us in resolving this issue?

![PHOTO-2024-02-20-00-56-38 2](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/b/4/b4cb058271796e435da9f54929dde9045619d079.jpeg)

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**Author:** ![chunsiong.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/chunsiong.zoom/32/35488_2.png) [@chunsiong.zoom](https://devforum.zoom.us/u/chunsiong.zoom)\
**Post date:** [February 23, 2024, 7:13am UTC](https://devforum.zoom.us/t/api-issue-error-2016/104395/2 "2024-02-23T07:13:01Z")

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@abdolrezarostamian ,

This looks like you are try to create user using the custCreate API. This API is only available for ISV customers.

You can contact sales for this

> **[Zoom ISV Partner Program | Zoom](https://explore.zoom.us/en/isv/#)**
>
> The Zoom ISV Developer Partner Program is designed to help builders integrate, embed, and take to market their application with Zoom Meetings and Video.

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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:** [February 25, 2025, 10:49pm UTC](https://devforum.zoom.us/t/api-issue-error-2016/104395/3 "2025-02-25T22:49:08Z")

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Closed on February 25, 2025, 10:49pm UTC

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