# Couldn’t complete the connection An error occurred while validating the app authorization.

**URL:** <https://community.hubspot.com/t/couldn-t-complete-the-connection-an-error-occurred-while-validating-the-app-authorization/77302>\
**Category:** APIs & Integrations\
**Tags:** developer-tools, free, oauth, starter\
**Created:** [March 16, 2023, 8:55am UTC](https://community.hubspot.com/t/couldn-t-complete-the-connection-an-error-occurred-while-validating-the-app-authorization/77302 "2023-03-16T08:55:05Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![KhoaMinHi](https://avatars.discourse-cdn.com/v4/letter/k/4af34b/32.png) [@KhoaMinHi](https://community.hubspot.com/u/KhoaMinHi)\
**Post date:** [March 16, 2023, 8:55am UTC](https://community.hubspot.com/t/couldn-t-complete-the-connection-an-error-occurred-while-validating-the-app-authorization/77302/1 "2023-03-16T08:55:05Z")

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Yesterday, I connected successfully (got the code and token) on my developer application. But today, I try to request and receive the response " Couldn’t complete the connection An error occurred while validating the app authorization."

Please help me. Thanks.

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<div class="post-metadata">

**Author:** ![KhoaMinHi](https://avatars.discourse-cdn.com/v4/letter/k/4af34b/32.png) [@KhoaMinHi](https://community.hubspot.com/u/KhoaMinHi)\
**Post date:** [March 17, 2023, 3:55am UTC](https://community.hubspot.com/t/couldn-t-complete-the-connection-an-error-occurred-while-validating-the-app-authorization/77302/2 "2023-03-17T03:55:58Z")

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I found the problem. I typed the incorrect parameter, redirect\_uri instead of the state (duplication redirect\_uri =\> array parameter).