# "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:** 40

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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:** [May 14, 2020, 5:14pm UTC](https://devforum.zoom.us/t/invalid-token-error-message-when-trying-to-refresh-oauth-token/13363/40 "2020-05-14T17:14:51Z")

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Happy to help @picktime!

In case this can help others, Picktime’s issue was an empty space in the [authorize url](https://marketplace.zoom.us/docs/guides/auth/oauth#step-1-request-user-authorization) between the client\_id and redirect\_url query param:

```nohighlight
https://zoom.us/oauth/authorize?response_type=code&client_id={client_id} &redirect_uri={redirect_url}

```

-Tommy

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_[View the full topic](https://devforum.zoom.us/t/invalid-token-error-message-when-trying-to-refresh-oauth-token/13363)._