# "Invalid Token!" error message when trying to refresh oauth token

**URL:** <https://devforum.zoom.us/t/invalid-token-error-message-when-trying-to-refresh-oauth-token/13363>\
**Category:** API and Webhooks\
**Created:** [April 15, 2020, 5:58pm UTC](https://devforum.zoom.us/t/invalid-token-error-message-when-trying-to-refresh-oauth-token/13363 "2020-04-15T17:58:14Z")\
**Posts on this page:** 1\
**Showing post:** 80

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**Author:** ![tommy](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/tommy/32/72769_2.png) [@tommy](https://devforum.zoom.us/u/tommy)\
**Post date:** [August 3, 2020, 4:57pm UTC](https://devforum.zoom.us/t/invalid-token-error-message-when-trying-to-refresh-oauth-token/13363/80 "2020-08-03T16:57:13Z")

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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

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