Entra ID: Bearer error="invalid_token", error_description="The signature key was not found"

Question

Entra ID: Bearer error="invalid_token", error_description="The signature key was not found"

Igor Bobro 0

I have configured the entra ID in the Azure portal and in my Web API tenant. I can successfully obtain the access token, but when I use it with my Web API request, I get this error: Bearer error="invalid_token", error_description="The signature key was not found". I checked this token on jwt.io and there seems to be something wrong with the signature part of the token that came to me from Entra ID.
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This application in the Azure portal was not created by my own. I tried creating a new one myself and everything works fine. I double checked every setting and everything seems similar.

What could be causing this problem? Could be the problem with Entra ID configuration on azure portal?

Akshay-MSFT 17,956 Reputation points Microsoft Employee Moderator

2024-03-12T10:05:35.3+00:00
@Igor Bobro

Kindly share the screenshot of the following:

The Application you have configured.

Steps on how are you sending the request for getting access token.

Thanks,

Akshay Kaushik

Your answer

Akshay-MSFT 17,956 Reputation points Microsoft Employee Moderator

2024-03-12T10:05:35.3+00:00

@Igor Bobro

Kindly share the screenshot of the following:

The Application you have configured.

Steps on how are you sending the request for getting access token.

Thanks,

Akshay Kaushik

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Entra ID: Bearer error="invalid_token", error_description="The signature key was not found"

Your answer