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D365 authentication type OAuth not working with own app registration

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I have been using AuthType as Office365 for my applications that communicates with Dynamics Crm, but since it is deprecated I have replace my connectionstring as follows:

Old:

New:

This works fine using the above default AppId and RedirectUri that Microsoft has provided. But I want to use my own AppId and therefore I created App Registration in Azure with all the configuration settings given in Microsoft doc Tutorial: Register an app with Azure Active Directory (Microsoft Dataverse) - Power Apps | Microsoft Docs.

I have replaced the AppId above with my AppId in Azure and has no RedirectUri so I left that blank. The code I am using is below:

CrmServiceClient conn = new CrmServiceClient(System.Configuration.ConfigurationManager.ConnectionStrings["MyCrm"].ConnectionString);
IOrganizationService orgService = (IOrganizationService)conn;

I am using Microsoft.CrmSdk.XrmTooling.CoreAssembly version 9.1.0.79

So when I try to create the connection, it throws the following error:

ERROR REQUESTING Token FROM THE Authentication context - General ADAL Error
AADSTS7000218: The request body must contain the following parameter: 'client_assertion' or 'client_secret'.
Trace ID: b901ed4b-bce4-44db-b20c-379317e52001
Correlation ID: ad84567a-99ac-4f02-b966-42f4f20642e7

Do I need anything else in connectionstring or the code? I don't want to use the ClientSecret Authtype because I need to pass the userid who will be talking to Crm.

Please suggest.

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Community Member on at

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RE: D365 authentication type OAuth not working with own app registration

Hi Lalupatey,

You can mark the answer as verifed through clicking 'Yes'.

Thanks !
Community Member on at

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RE: D365 authentication type OAuth not working with own app registration

I was trying to do that but I don't see "Please mark as verifed...." option anywhere. Please suggest.
Community Member on at

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RE: D365 authentication type OAuth not working with own app registration

Hi Partner,

Please click Yes under "Did this answer your question?" to close this thread if my answer is helpful.

Thanks.

Regards,

Leah Ju

Please mark as verified if the answer is helpful. Welcome to join hot discussions in Dynamics 365 Forums.
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Community Member on at

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RE: D365 authentication type OAuth not working with own app registration

Also I added my own Redirect URI
Community Member on at

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RE: D365 authentication type OAuth not working with own app registration

Thank you so much for the link you provided.

I updated the Redirect URIs and set the "Default Client type" to Yes for Authentication and it works.
NoellaB 165 User Group Leader on at

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RE: D365 authentication type OAuth not working with own app registration

Hello there,

I believe that the missing part is not initializing a client secret key in your newly created application in Azure. Please refer to this link for further explanation: https://docs.microsoft.com/en-us/powerapps/developer/data-platform/walkthrough-register-app-azure-active-directory

And here's a link on how you can add an application client secret key: https://docs.microsoft.com/en-us/powerapps/developer/data-platform/authenticate-oauth#use-client-secrets--certificates

If this helps, please make sure to verify my answer.
Community Member on at

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RE: D365 authentication type OAuth not working with own app registration

Hi Lalupatey,

Maybe you can refer following link:

Azure AD returns AADSTS7000218 error | Azure Active Directory Developer Support Team (aaddevsup.xyz)

Unable to login. Getting error: AADSTS7000218 The request body must contain the following parameter... · Issue #9 · Azure-Samples/active-directory-dotnetcore-devicecodeflow-v2 · GitHub

c# - Body must contain client_secret or client_assertion - Stack Overflow

Regards,

Leah Ju

Please mark as verified if the answer is helpful. Welcome to join hot discussions in Dynamics 365 Forums.