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How to Migrate a SharePoint Add-in from ACS to Microsoft Entra ID
Question details
The user needs guidance on migrating a SharePoint add-in's authentication from Azure Access Control Services (ACS) to Microsoft Entra ID.
- Product
- SharePoint / Microsoft Entra ID
- Device & OS
- not provided
- Scenario
- Upgrading SharePoint add-in authentication, permissions, and registration architecture.
- Observed behavior
- Requires step-by-step developer guidance to resolve authentication flows and compatibility errors during the migration process.
Gather your current ACS configuration details, target architecture plans, and specific SharePoint environment information before seeking migration support.
Consult Microsoft Q&A Specialists for Developer Support
Since ACS to Entra ID migration involves complex backend authentication and permissions changes, the most effective approach is to outline your specific configuration on the official Microsoft Q&A platform for targeted specialist guidance.
Migrating from Azure Access Control Services to Microsoft Entra ID involves re-registering applications, updating OAuth flows, and adjusting permissions within SharePoint.
Due to the highly customized nature of SharePoint Add-ins, leveraging Microsoft's developer community ensures you receive guidance tailored to your specific architecture and code errors.
Open your web browser and go to the official Microsoft Q&A platform.
Click to ask a new question. Clearly explain that you are migrating a SharePoint add-in from ACS to Microsoft Entra ID.
Provide detailed context, including your current ACS configuration, target architecture, SharePoint environment details, authentication flow, and permissions model.
If you have already started the migration and hit roadblocks, paste the specific error codes or compatibility issues you are encountering.
Before publishing, ensure you add the 'Microsoft Entra ID' and 'SharePoint Development' tags to route your question to the correct specialists.
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Frequently Asked Questions
Why is migration from ACS to Microsoft Entra ID necessary for SharePoint add-ins?
Microsoft is retiring Azure Access Control Services (ACS), making it mandatory to transition applications to Microsoft Entra ID (formerly Azure AD) to maintain secure authentication and robust API authorization.
What permissions do I need to register an app in Microsoft Entra ID?
To register new applications and grant necessary admin consent during the migration, you typically need the Application Administrator or Global Administrator role within your Microsoft Entra ID tenant.
Will my SharePoint add-in experience downtime during the ACS migration?
If properly architected, you can configure the new Entra ID application alongside your existing ACS setup in a staging environment for testing before fully switching production traffic, thereby minimizing or eliminating downtime.
