Add-PNPfile and Get-PNPfile fail with "access denied"

[md7648]

We have some old scripts that reference a users Onedrive to copy a file from an on-prem folder to Onedrive

We have noticed this is constantly failing now - I'm guessing due to the changes to PNP application registered in tenant.

We have registered a new application and now login via;
Connect-PnPOnline -Url $SiteURL -Credentials $credObject -ClientId [number]

The PNP connection works correctly and I can see I'm connected to the users Onedrive via Get-PNPconnection/Get-PNPContext

$sourcefilepath is the network path of the file to copy "\domain\site\shared\filename.csv"

$folderpath is in the format "documents/foldername/foldername2"

I have tested this after giving the new PNP registration Graph API Sites.Manage.All and Sharepoint API Sites.Manage.All

The $credentials we use have full ownership on the users onedrive as a service account or has access to the file

So the full script we use is;

Connect-PnPOnline -Url $SiteURL -Credentials $credObject -ClientId [appid]
#Upload file to destination
Add-PnPFile -Path $SourceFilePath -Folder $folderpath

[md7648]

I got it, it was delegate permissions