How to grant permissions on behalf of the organization Script

tcboeira 

To grant permissions on behalf of the organization during the script execution, you can follow these steps:

1. Create the App Registration: Use the script to create the Principal API/APP/Service in Entra ID.
2. Assign API Permissions: Use the script to assign the necessary delegated and application permissions.
3. Use Microsoft Graph to Consent: Unfortunately, there isn’t a direct way to perform admin consent via PowerShell alone. However, you can use the Microsoft Graph API to consent to the permissions on behalf of the organization.

Here’s a basic outline of how to do it:

• Obtain an Access Token: Use the Connect-MgGraph cmdlet to authenticate with the required permissions.

Connect-MgGraph -Scopes "Application.ReadWrite.All", "DelegatedPermissionGrant.ReadWrite.All"

• Consent via Graph API: Once authenticated, you can consent to the permissions using the Graph API. However, admin consent typically involves manually visiting a consent URL or interacting with a UI, so fully automating this might be complex. You can initiate the consent process via the API:

# Replace <client-id>, <tenant-id>, and <redirect-uri> with your values
$consentUrl = "https://login.microsoftonline.com/<tenant-id>/adminconsent?client_id=<client-id>&state=12345&redirect_uri=<redirect-uri>"
Start-Process $consentUrl

This will open the consent URL in a browser, where an admin can provide consent.

• Automated Consent Considerations: If you need full automation, consider Azure AD Privileged Identity Management (PIM) or implementing an Azure AD Application Proxy to handle consent more seamlessly.
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In summary, while full automation is challenging due to security considerations, the above steps provide a pathway. Manual consent through the consent URL is often necessary for the admin consent process.