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Productivity Activities

Last updated Oct 21, 2025

AADSTS900971: No reply address provided

Issue

When using Interactive token with a Custom application, you encounter the following error when trying to authenticate: AADSTS900971: No reply address provided.

This error means that the authentication request did not include a reply URL at all.

Root cause

The client application failed to send a redirect_uri parameter in the request to Azure AD.

Solution

In Azure, go to App registrations, select your application, then navigate to the Authentication tab. Make sure that the application includes a valid redirect_uri in the authentication request.
Note: This redirect URI is required for all Studio project types, that is, Windows - Legacy, Windows, and Cross-platform. For Windows and Cross-platform projects, you must add an additional URI: http://localhost.


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