# Invalid authorization code and invalid grant

**URL:** <https://devforum.zoom.us/t/invalid-authorization-code-and-invalid-grant/69849>\
**Category:** API and Webhooks\
**Created:** [June 2, 2022, 5:09am UTC](https://devforum.zoom.us/t/invalid-authorization-code-and-invalid-grant/69849 "2022-06-02T05:09:56Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![dparkar00](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/dparkar00/32/38172_2.png) [@dparkar00](https://devforum.zoom.us/u/dparkar00)\
**Post date:** [June 2, 2022, 5:09am UTC](https://devforum.zoom.us/t/invalid-authorization-code-and-invalid-grant/69849/1 "2022-06-02T05:09:57Z")

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I am using “[https://zoom.us/oauth/token](https://zoom.us/oauth/token)” api to get access token using postman  
I am passing below parameters in query string

1. code={oauth-code generated}
2. grant\_type=authorization\_code  
3)redirect\_uri={myapp url}

I am passing below header variable

1. Content-Type=application/x-www-form-urlencoded

Authorization:

Type=Basic  
UserName=Client\_Id  
Password=Client\_Secret

I am getting below JSON response

{  
“reason”: “Invalid authorization code”,  
“error”: “invalid\_grant”  
}

What might be causing “Invalid Authorization Code” ?

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<div class="post-metadata">

**Author:** ![donte.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/donte.zoom/32/24412_2.png) [@donte.zoom](https://devforum.zoom.us/u/donte.zoom)\
**Post date:** [June 2, 2022, 10:24am UTC](https://devforum.zoom.us/t/invalid-authorization-code-and-invalid-grant/69849/2 "2022-06-02T10:24:52Z")

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Welcome, @dparkar00,

Thank you for posting in the Developer Forum. The configuration for the access token is correct. Have you verified the correct Client\_Id and Client\_Secret are being used?

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<div class="post-metadata">

**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:** [July 2, 2022, 8:25pm UTC](https://devforum.zoom.us/t/invalid-authorization-code-and-invalid-grant/69849/3 "2022-07-02T20:25:49Z")

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