# Signature is invalid.', errorCode: 3712

**URL:** <https://devforum.zoom.us/t/signature-is-invalid-errorcode-3712/98826>\
**Category:** Meeting SDK\
**Created:** [November 22, 2023, 4:17am UTC](https://devforum.zoom.us/t/signature-is-invalid-errorcode-3712/98826 "2023-11-22T04:17:00Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![arkangel.contreras](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/arkangel.contreras/32/50828_2.png) [@arkangel.contreras](https://devforum.zoom.us/u/arkangel.contreras)\
**Post date:** [November 22, 2023, 4:17am UTC](https://devforum.zoom.us/t/signature-is-invalid-errorcode-3712/98826/1 "2023-11-22T04:17:00Z")

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Hello, I need help. I’m trying to integrate Zoom into a React app, but I haven’t been able to make it work.

When I try to join, it throws an error:  
{method: ‘join’, status: false, result: ‘Invalid signature.’, errorMessage: ‘Signature is invalid.’, errorCode: 3712}…

To obtain the signature, I’m using the Sample Meeting SDK Signature App in Express with Node JS 19, but it gives me that error. The scope I need is to be able to join a meeting. I’ve searched for references to integrate it, but I haven’t been successful. Do you have any suggestions on how to solve this error? Thank you.

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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:** [November 22, 2023, 5:40am UTC](https://devforum.zoom.us/t/signature-is-invalid-errorcode-3712/98826/2 "2023-11-22T05:40:16Z")

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@arkangel.contreras could you share a sample of your signature here?

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<div class="post-metadata">

**Author:** ![arkangel.contreras](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/arkangel.contreras/32/50828_2.png) [@arkangel.contreras](https://devforum.zoom.us/u/arkangel.contreras)\
**Post date:** [November 23, 2023, 12:26am UTC](https://devforum.zoom.us/t/signature-is-invalid-errorcode-3712/98826/3 "2023-11-23T00:26:31Z")

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<div class="post-metadata">

**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:** [November 23, 2023, 2:21am UTC](https://devforum.zoom.us/t/signature-is-invalid-errorcode-3712/98826/4 "2023-11-23T02:21:14Z")

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@arkangel.contreras please use the clientID and clientSecret from a Meeting SDK App Type for this signature generation