Help! Grant-PnPAzureADAppSitePermission Command is Failing
Asked by
CoolBreeze42
I'm facing a frustrating issue while trying to give an app permission to access a couple of SharePoint sites using PowerShell. I have an Azure App Registration that works great normally and has full control permissions for my SharePoint sites. I've logged into PnP PowerShell with this app registration, but when I try to use the Grant-PnPAzureADAppSitePermission cmdlet, I receive an error message saying 'Access denied'. The error reads:
{"error":{"code":"accessDenied","message":"Access denied","innerError":{"date":"2025-07-07T15:25:50","request-id":"d6e54492-2f8f-4a7c-bf53-a836a09c07f0","client-request-id":"d6e54492-2f8f-4a7c-bf53-a836a09c07f0"}}}
I've double-checked, and the PnP App registration has the Sites.FullControl.All permission. I'm not sure what else could be causing this issue. Can anyone help out?
Answers
Have you tried letting PnP PowerShell generate its own client? Sometimes that can bypass these access issues. Just a thought!
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CoolBreeze42: What do you mean by that? I haven’t done that before.