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Authorization Flow Callback Error

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When I redirect my user to `https://login.microsoftonline.com/common/oauth2/v2.0/authorize` for OAUTH2 authorization flow. Im receiving a callback error "invalid_request" with description "AADSTS1000031: Application <App Name> cannot be accessed at this time. Contact your administrator". Any one have encountered and resolved this kind of issue been trying to solve this for days. I already tried removing the user's permission one by one but Im unable to reproduce it. This is fully working for most of our customers except for this one particular customer. Thank you in advance!

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Dynamics 365 Business Central

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Sohail Ahmed 11,095 Super User 2025 Season 2 on at

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Authorization Flow Callback Error

Maybe this will help point you in the right direction.

The error AADSTS1000031: Application cannot be accessed at this time usually means that:

The Azure AD app registration is not properly configured or

The user/account doesn’t have consent or permissions to access the app.

Try the following:

1. Verify App Registration

Make sure the app is not disabled in Azure Portal.

Ensure it is multi-tenant if you're using /common/ in the URL.

2. Check API Permissions

Go to Azure > App Registrations > Your App > API permissions.

Confirm that Delegated permissions are added and admin consent is granted.

3. Consent Flow

Try accessing with a global admin first to provide initial consent, especially for multi-tenant apps.

4. Avoid Using /common/

If possible, replace /common/ with your actual tenant ID in the authorize URL to avoid tenant mismatch issues.

Let me know if you'd like help reviewing your app registration.

Mark below checkbox to make this answer Verified if it helps you.

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Khushbu Rajvi. 19,359 Super User 2025 Season 2 on at

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Authorization Flow Callback Error

Hope this helps:https://www.kauffmann.nl/2022/02/23/configuring-business-central-for-azure-active-directory-authentication-and-oauth-2/

https://github.com/OfficeDev/microsoft-teams-library-js/issues/2079

https://learn.microsoft.com/en-us/dynamics365/business-central/dev-itpro/webservices/authenticate-web-services-using-oauth

https://help.mulesoft.com/s/question/0D56R00009CWaoHSAT/error-in-production-microsoft-dynamics-365-business-central-data-services-attempted-to-issue-a-client-callback

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Gerardo Rentería Ga... 23,590 Most Valuable Professional on at

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Authorization Flow Callback Error

Hi, good day
I hope this can help you, and give you some hints.

Azure AD SSO Guest user can't login - Stack Overflow

An AADSTS1000031 error · Issue #41 · microsoft/cross-tenant

Best Regards
Gerardo

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CU07100202-0 118 on at

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Authorization Flow Callback Error

Thank you for all the responses. Will take a look on those suggestions. Note that its already working for most of our customers only on this one particular customer that its not working.

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CU07100202-0 118 on at

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Authorization Flow Callback Error

Hello, unfortunately, none of the suggestions worked. Still open for any suggestions. TIA!

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YUN ZHU 93,325 Super User 2025 Season 2 on at

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Authorization Flow Callback Error

Hi, hope the following can give you some hints.

Using OAuth to connect Business Central APIs and Web Service in Postman

https://yzhums.com/20690/

Thanks.

ZHU

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CU07100202-0 118 on at

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Thank you @YUN ZHU, however, I still can not reproduce the error. Please note that this is working with our other customers.

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Pallavi Phade 2,338 on at

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Authorization Flow Callback Error

Greetings !

Seems that the Azure AD (Microsoft Entra ID) application you're trying to use in your OAuth2 flow is either misconfigured or restricted

1) Check Admin Center , Check Azure App is properly setup in azure active directory applications with D365 API permssion for user in BCE

Correct Authorization url
https://login.microsoftonline.com/<tenant_id>/oauth2/v2.0/authorize?
client_id=<your_client_id>
&response_type=code
&redirect_uri=<your_redirect_uri>

or

2) In Azure Portal
Under API Permissions , Add BCE Permissions and Grant admin consent for Tenant

or

3) In Azure Portal
Check you have provided multi-tenant access in authentication part

Make sure that the client_id, redirect_uri, and scope values exactly match what's configured in your Azure App Registration.

If this solution resolves your issue, kindly mark the answer as Verified for future reference.

Regards
Pallavi Phade

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