[BUG] Grant-PnPAzureADAppSitePermission not working

[meklulose]

I am currently trying to Add-PnPFile to a site. But I am getting the following error:

The remote server returned an error: (401) Unauthorized.

I have given the system identity Microsoft Graph Sites.Selected Permission

I then used the Grant-PnPAzureADAppSitePermission to give it a write permission to the site. I upgraded it to have fullcontrol permission but I am still getting the same error.

Please include complete script or code samples in-line or linked from gists
To give Microsoft graph permission

Connect-Mggraph
New-MgServicePrincipalAppRoleAssignment -ServicePrincipalId "xxxxxx" -PrincipalId "xxxxxx" -ResourceId "13bf9627-ddb6-457d-b635-59e071b4450e" -AppRoleId "883ea226-0bf2-4a8f-9f9d-92c9162a727d"

To grant permission to Site

Connect-PnPOnline -url "https://xxxx.sharepoint.com/sites/xxxxxx" -Interactive
 Grant-PnPAzureADAppSitePermission -AppId "xxxxxxxxxx" -DisplayName "xxxxxxxxxxxx" -Permissions write -Site "https://xxxx.sharepoint.com/sites/xxxxxxxx"

To give fullcontol permission to Site
Set-PnPAzureADAppSitePermission -PermissionId xxxxxxxxxxxx -Permissions FullControl -Site https://xxxxx.sharepoint.com/sites/xxxxxx

PnP Script to Add file

Connect-PnPOnline -url "https://xxxxx.sharepoint.com/sites/xxxxx" -ManagedIdentity
$logoutput= "This is a test"
Add-PnPFile -FileName "log$($date).txt" -Folder "Shared Documents" -Content $logoutput 

What is the version of the Cmdlet module you are running?

This is the version of pnp powershell used to grant permission:

ModuleType Version Name ExportedCommands

---

Manifest 1.12.0 PnP.PowerShell {Add-PnPAdaptiveScopeProperty, Add-PnPPropertyBagValue, Add-PnPSiteClassification, Copy-PnPFolder...}

This is the version the automation account has:
ModuleType Version PreRelease Name PSEdition ExportedCommands

---

Manifest 2.2.0 PnP.PowerShell Desk {Add-PnPAdaptiveScopeProperty, Add-PnPPr…

Which operating system/environment are you running PnP PowerShell on?

• Automation Account