Graph API Insufficient privileges when executing with Power Automate

Question

Hi everyone! I’m executing Graph API “https://graph.microsoft.com/beta/users” using power automate workflow and it works fine. But when I try to filter my data i.e, “https://graph.microsoft.com/beta/users?$filter=mail eq ‘xyz@email.com'”, it throws an error saying “Insufficient privileges to complete the operation”. Kindly guide me in this regard. Thanks.

Answer 1

Hi @Zain Abbas [TR(IT)],

You are most likely experiencing this if your application only has delegated permissions for https://graph.microsoft.com/User.ReadBasic.All. With only User.ReadBasic.All, your app doesn't have permission to read the userType property, which also means it doesn't have permission to filter on that property.

You'll probably find any user in the tenant will have the same experience, including a member or a global admin, not just your guest user. If your app requests for User.Read.All instead, the filter should work as expected for your guest user in the Guest Inviter role.

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