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How to generate delegated OAuth2 token (with user info) using X++ in D365FO

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Posted on by JP-29040605-0

Hi everyone,

I’m trying to generate a delegated OAuth2 token (including user context like User.Read) from within X++ in Dynamics 365 Finance & Operations.

In Postman, I’ve successfully achieved this using the OAuth 2.0 flow — I’ve attached a screenshot showing how I configured the request and used the "Get New Access Token" button to retrieve the token.

Now I’m looking to replicate this behavior in X++. Specifically:

Is it possible to generate a delegated token from X++?
Are there any built-in classes or frameworks that support this flow?
What’s the recommended approach for securely handling this in D365FO?

For reference, here’s the guide I followed to generate the token using Postman:
🔗 https://learn.microsoft.com/en-gb/answers/questions/4379336/how-to-generate-token-in-x-for-third-party-app-wit

Any guidance, examples, or documentation links would be greatly appreciated.

Thanks in advance!

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Dynamics 365 Finance

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Martin Dráb 238,067 Most Valuable Professional on at

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Sure, you can send HTTP requests from X++, including this one. You just need to use .NET classes such as System.Net.Http.HttpClient, not a native X++ class (unless it's a wrapper of a .NET API). Also, OAuth .NET libraries exist, if you don't want to deal with raw HTTP requests the same way as in Postman.

By the way, there isn't a single OAuth 2.0 flow - several different flows exist, such as client credentials flow. When talking about these things, it'll help if you say which flow you want to use.

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vishalsahijwani 197 on at

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Hi JP-29040605-0 ,

Please go through the below mentioned blog post : -

Dynamics 365 Fin Ops Code Base: How to Consume JSON Web API using GET Method in Dynamics 365 FO

In this blog post the logic is generating a dynamic authentication token through x++ and calling an API generated by Dynamics CRM.

The code segment - Microsoft.IdentityModel.Clients.ActiveDirectory.AuthenticationResult authenticationResult =
authenticationContext.AcquireTokenAsync(activeDirectoryResource, activeDirectoryClientAppId, userCredential).Result;

Hope this helps !!!!

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hca 171 on at

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How do you involve the user in this process?

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