# POST Oauth Authorization token failure

**URL:** <https://devforum.zoom.us/t/post-oauth-authorization-token-failure/49625>\
**Category:** API and Webhooks\
**Created:** [May 5, 2021, 12:25pm UTC](https://devforum.zoom.us/t/post-oauth-authorization-token-failure/49625 "2021-05-05T12:25:51Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**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:** [May 6, 2021, 2:58am UTC](https://devforum.zoom.us/t/post-oauth-authorization-token-failure/49625/2 "2021-05-06T02:58:49Z")

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Hi, @marvieir,  
Thank you for posting in the Developer Forum. Please make sure you are using the latest token. More details on refreshing Access tokens can be found in our help documentation. You may also be interested in checking out this helpful developer Forum post linked below.

Help Documentation :  
[https://marketplace.zoom.us/docs/guides/auth/oauth#using-access-token](https://marketplace.zoom.us/docs/guides/auth/oauth#using-access-token)

Developer Forum post :

> [@"Invalid Token!" error message when trying to refresh oauth token](https://devforum.zoom.us/t/invalid-token-error-message-when-trying-to-refresh-oauth-token/13363/80):
>
> Hey @pablo.fredes, Please try the [OAuth and refresh flow](https://marketplace.zoom.us/docs/guides/auth/oauth) in [Postman](https://www.postman.com/) and see if it works. It could very well be a misconfiguration in your code. Thanks, Tommy

Let me know if this helps,  
Donte

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