# Webhook Validation failed

**URL:** <https://devforum.zoom.us/t/webhook-validation-failed/106520>\
**Category:** API and Webhooks\
**Tags:** webhooks\
**Created:** [March 26, 2024, 9:14am UTC](https://devforum.zoom.us/t/webhook-validation-failed/106520 "2024-03-26T09:14:54Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![MrMustafa](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/mrmustafa/32/43492_2.png) [@MrMustafa](https://devforum.zoom.us/u/MrMustafa)\
**Post date:** [March 26, 2024, 9:14am UTC](https://devforum.zoom.us/t/webhook-validation-failed/106520/1 "2024-03-26T09:14:54Z")

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Hello, When I try to validate webhook for webinar.start event, I did not get any data to Event type webinar.start

![Screenshot_5](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/f/3/f36d1e69e4593bb60878a12162f3eb64743dd3e7.png)

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**Author:** ![MrMustafa](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/mrmustafa/32/43492_2.png) [@MrMustafa](https://devforum.zoom.us/u/MrMustafa)\
**Post date:** [March 26, 2024, 11:15am UTC](https://devforum.zoom.us/t/webhook-validation-failed/106520/3 "2024-03-26T11:15:25Z")

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I searched and tried many times

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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:** [March 30, 2025, 2:51am UTC](https://devforum.zoom.us/t/webhook-validation-failed/106520/4 "2025-03-30T02:51:44Z")

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Closed on March 30, 2025, 2:51am UTC

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