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Dynamics 365 Community / Forums / Customer experience | Sales, Customer Insights,... / How to Use the refresh...
Customer experience | Sales, Customer Insights,...
Suggested Answer

How to Use the refresh token to obtain a new access token?

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Posted on by CSafwat 90

We have a web app (ASP.Net) published on Azure and we connected the web app with CRM Dynamics 365 on Azure Active Directory. 

We followed this tutorial https://debajmecrm.com/2016/02/29/dynamics-crm-web-api-external-application/ and we can get the access token using the authorization code after the user authenticates, 

but we have a problem when trying to send this access token to make HttpWebRequest  to retrieve data from crm, this error appears ('AADSTS54005: OAuth2 Authorization code was already redeemed, please retry with a new valid code or use an existing refresh token.). 

After searching i found this tutorial https://community.dynamics.com/crm/b/magnetismsolutionscrmblog/posts/dynamics-365-online-authenticate-with-user-credentials it says we have to use the refresh token to obtain a new access token. 

So, How can we use the refresh token to obtain a new access token?

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  • Suggested answer
    Luis Nogueira Profile Picture
    Luis Nogueira on at

    Hi,

    To refresh the token please follow the steps on : docs.microsoft.com/.../v1-protocols-oauth-code

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