Error when a Government cloud user is accessing web app hosted in commercial cloud

Question

I am facing the below issue, when an Azure Government cloud user is trying to access an web app hosted in Azure commercial cloud. I confirm that the reply url is present in the app registration

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AADSTS50011: The reply URL specified in the request does not match the reply URLs configured for the application: '7c528ed8-8f39-4efe-8ac2-c5a6d108def7'.

Troubleshooting details
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Request Id: 8e827a78-276c-4d7b-a2b8-3425c3811f00
Correlation Id: b7b3a2d7-16f7-4e39-9e6e-82974bf76951
Timestamp: 2021-09-01T13:43:56Z
Message: AADSTS50011: The reply URL specified in the request does not match the reply URLs configured for the application: '7c528ed8-8f39-4efe-8ac2-c5a6d108def7'.
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Answer 1

@BONTHULA Seshu Naresh
Thank you for your time and patience!

When looking into your Correlation ID - b7b3a2d7-16f7-4e39-9e6e-82974bf76951, from the error messages that came back (posted below), I wasn't able to find any Reply URL error.

Error Messages:

• AADSTS50168: The client is capable of utilizing the Windows 10 Accounts extension to perform SSO but no SSO token was found in the request or the token was expired. Request has been interrupted to attempt to pull an SSO token.
• No user credential found or user credential does not contain a UserSearchIdentifier claim.
• DPX cloud redirect from 'microsoftonline.com' to 'MicrosoftOnline.US' is not supported

Note - For the Azure US Government cloud, if you're trying to work with other users outside of your tenant:

B2B collaboration is currently only supported between tenants that are both within Azure US Government cloud and that both support B2B collaboration. If you invite a user in a tenant that isn't part of the Azure US Government cloud or that doesn't yet support B2B collaboration, the invitation will fail or the user will be unable to redeem the invitation.

Can you invite Guest user in Azure Government cloud AAD tenant?
B2B / Guest Access between Government (National Cloud) and Commercial Cloud timeline

Reply URL error message:
Since you confirmed that the Reply URL is present in your app registration (7c528ed8-8f39-4efe-8ac2-c5a6d108def7), can you make sure that the Reply URL you're sending in your request matches what is in your app registration? If you don't know what Reply URL you're sending in your request, you can try using the Developer Tools (F12), or Fiddler to see what URL you're sending within your request.

Additional Links:
The reply URL specified in the request does not match the reply URLs configured for the application
Error AADSTS50011

If this doesn't help resolve your issue, please let me know.
Thank you for your time and patience throughout this issue.

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