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Azure AD: function app + web app using the same app registration

Jim (Dimitrios) Andrakakis 0 Reputation points
2025-01-29T07:49:33.8733333+00:00

Hi

We're thinking of rewriting a part of our enterprise application, specifically the part that is in Azure and is implemented in a function app. The rewrite will use a web app.

Is it possible to reuse the same application registration?

TIA

Jim

Azure Functions
Azure Functions

An Azure service that provides an event-driven serverless compute platform.

Azure App Service
Azure App Service

Azure App Service is a service used to create and deploy scalable, mission-critical web apps.

Microsoft Security | Microsoft Entra | Microsoft Entra ID
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  1. Abiola Akinbade 30,490 Reputation points Volunteer Moderator
    2025-01-29T08:11:16.8433333+00:00

    Hello Andrakakis, Dimitrios,

    Thanks for your question.

    Yes, the same App registration can be re-used.

    Consider the architecture of your application to find the best possible solution. See a very good explanation here:

    https://learn.microsoft.com/en-us/answers/questions/1421814/one-vs-two-app-registrations-for-an-app-with-front

    You can mark it 'Accept Answer' and 'Upvote' if this helped you

    Regards,

    Abiola

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