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Automating App registration for SPO site.selected

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Posted on by Thomas.m1988

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i have a requirement to automate the graph api app registration for sharepoint site.selected. we dont have option to execute powershell from our laptop hence i would like to check if it possible to automaate using power automate to perform site binding

Thanks in advance

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11manish 3,210 on at

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If your goal is to automate the site binding for an existing App Registration using Sites.Selected, Power Automate is a viable solution by invoking the Microsoft

Graph API directly.

This is effectively the same operation performed by the PnP PowerShell cmdlets, but without requiring PowerShell execution.

The only remaining manual (or separately automated) steps are creating the app registration, assigning the Graph Sites.Selected permission, and granting admin

consent, as these cannot be fully handled by standard Power Automate actions alone.

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Vish WR 3,730 on at

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@Thomas.m1988

You can do this in Power Automate, u need to use an HTTP action to perform this. I have attached the flow structure and high-level steps

If you want, I can share the solution

High-Level Steps

Register an application in Microsoft Entra ID.

Add the Microsoft Graph Application permission Sites.Selected and grant Admin Consent.

Obtain a Microsoft Graph access token using the Client Credentials flow.

Retrieve the SharePoint Site ID using the Graph API.

Call the Graph API endpoint:
POST /sites/{site-id}/permissions
to grant the application the required permission (read, write, manage, or fullcontrol) on the site.

Repeat the process for additional SharePoint sites if required.

Verify the permission by testing Graph or SharePoint operations using the application token.

Power Automate Flow

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Vish WR 3,730 on at

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@Thomas.m1988

Sorry i have attached the wrong screenshot, but the overall approach is still correct.

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