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How to Publish a SharePoint Power App to Microsoft AppSource

Phi Hung Vo Oct 1, 2026 868 views

Question details

The user needs guidance on publishing a Power App connected to SharePoint to Microsoft AppSource, specifically regarding permissions and external access.

How to Publish a SharePoint Power App to Microsoft AppSource

Product: Microsoft Power Apps
Device & OS: not provided
Scenario: Deploying a custom Power App integrated with SharePoint lists to Microsoft AppSource for external user availability.
Observed behavior: Requires clarity on AppSource deployment rules, external sharing protocols, authentication setups, and managing underlying SharePoint site permissions.

Before you start

Ensure you have an active Microsoft Partner Network (MPN) account, administrative rights to the Power Apps environment, and Full Control permissions over the connected SharePoint site.

Solution 1Recommended

Seek Guidance from the Microsoft Power Apps Community

Because AppSource deployment involving SharePoint connections requires complex external sharing and authentication configurations, consulting official community specialists is highly recommended.

Publishing a SharePoint-backed Power App to external users via AppSource involves intricate tenant configurations. AppSource distributes the app itself, but does not automatically configure external access to your underlying SharePoint lists. Therefore, resolving the authentication and permission hurdles is best handled by consulting experts who specialize in AppSource deployment.

Visit the Power Apps Community

Open your web browser and navigate to the official Microsoft Power Apps Community forum.

Navigate to the AppSource boards

Browse to the 'Building Power Apps' or specific 'AppSource' discussion boards where deployment specialists are active.

Post your specific scenario

Create a new topic detailing your SharePoint list connections, the intended external user requirements, and your current AppSource deployment status.

Implement expert recommendations

Follow the advice provided by Microsoft MVPs and support engineers regarding Azure Active Directory (AAD) guest access and SharePoint permission mapping.

Seek Guidance from the Microsoft Power Apps Community

External Sharing Scope: Keep in mind that external users will likely need to be invited as Azure AD B2B guests in your tenant to securely access the connected SharePoint lists.

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Frequently Asked Questions

Can external users access a Power App connected to SharePoint?

Yes, but they must be authenticated. Typically, external users need to be added as Guest Users in your Azure Active Directory (Azure AD) and explicitly granted permissions to both the Power App and the underlying SharePoint lists.

What are the prerequisites for publishing an app to Microsoft AppSource?

You must be enrolled in the Microsoft Partner Network (MPN), possess a valid commercial marketplace account in the Microsoft Partner Center, and ensure your application meets all of Microsoft's technical and security certification policies.

Does AppSource automatically handle SharePoint data permissions for users who download my app?

No. AppSource only facilitates the discovery and distribution of the Power App. Data access and SharePoint site permissions must be managed independently by the tenant administrator where the app is deployed.

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