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What are The Common OAuth2 Errors & How to Fix Them

The key to resolve an OAuth2 error is to understand the error message

5 min. read

Published onNovember 24, 2023

published onNovember 24, 2023

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Key notes

Developers often encounter errors during the OAuth2 authentication process when they implement secure access to resources.

In this guide, we will discuss different OAuth2 errors, offering insights into their origins and providing practical solutions to troubleshoot and resolve them effectively.

How can I fix the common OAuth2 errors?

How can I fix the common OAuth2 errors?

1. Invalid_request

If an authentication request to Hub doesn’t have a required parameter, includes a parameter more than once, has an invalid parameter value, or is malformed, you can see the invalid_request error.

To fix it, check these things:

To know more about the issue, you should use thedebugging toolsor take a good look at the logs provided by the OAuth2 provider.

2. Unauthorized_client

If the client is attempting to authenticate and doesn’t have permission to request an access token or is not recognized by the authorization server.

To fix it, check these things:

3. Unsupported_response_type

The unsupported response type error in OAuth2 appears when the requested response type in the authorization request is not supported or allowed by the authorization server.

To fix it, check these things:

4. Invalid_scope

You get the Invalid_scope error message when the scope for which authorization is requested doesn’t match with the registered service.

To fix it, check these things:

5. Invalid_client

When a client who is trying to authenticate or client ID or Client secret are not recognized or incorrect, you see the Invalid_client error.

To fix it, check these things:

6. Access denied

If a user denies requested permissions or when the authorization server doesn’t accept the authorization request, you see the access_denied message.

To fix it, check these things:

7. Invalid Redirect URI

When the Redirect URI mentioned in the OAuth2 authorization request is not the same as the one registered with the authorization server.

To fix it, check these things:

Understanding the error message is the first step to diagnosing and resolving any OAuth2 error; therefore, first, find the root cause of the issue, then use the necessary steps to fix it.

Insufficient permissions can also cause other issues like the403 Forbidden error on Ebay; read this guide to learn more about it.

If you have any questions or suggestions about the subject, feel free to mention them in the comments section below. We will be happy to help!

Srishti Sisodia

Windows Software Expert

Srishti Sisodia is an electronics engineer and writer with a passion for technology. She has extensive experience exploring the latest technological advancements and sharing her insights through informative blogs.

Her diverse interests bring a unique perspective to her work, and she approaches everything with commitment, enthusiasm, and a willingness to learn. That’s why she’s part of Windows Report’s Reviewers team, always willing to share the real-life experience with any software or hardware product. She’s also specialized in Azure, cloud computing, and AI.

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Srishti Sisodia

Windows Software Expert

She is an electronics engineer and writer with a passion for technology. Srishti is specialized in Azure, cloud computing, and AI.